·. SPILL PREVENTION CONTROL AND COUNTERMEASURES (SPCC) PLAN Addison Airport Fuel Farm Addison Road @Roscoe Turner Street Dallas, Texas 75248 Prepared/or: Addison Airport 4545 Claire
Chennault Dallas, Texas 75248 June 1998 Prepared by: EA Engineering. Science and Technology 1420 Valwood Parkway, Suite 170 Carrollton, Texas 75006 EA I'nliect No. 13457.01.0002 
ENGINEERING CERTIFICATION I hereby certify that I have examined the Addison Airport Fuel Farm located near the intersection of Addison Road @Roscoe Turner Street in Dallas, Texas. and
being familiar with the provisions of 40 CFR, Part 112, attest that this SPCC plan has been prepared in accordance with good engineering practices. I certify that this document was prepared
under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry
ofthe person or persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief. true, accurate, and complete . .. '.
EA Project No. 13457.01.0002 
MANAGEMENT CERTIFICATION NAME OFFAClI1TY: FACILITY OWNER: FACILITY OPERATORS: Addison Airport Fuel Farm Addison Road @Roscoe Turner Street Dallas (Dallas County), Texas Town of Addison
16801 Westgrove Road Addison, Texas 75001 Mercw:y Air Center, Inc. 4400 Gleun Curtis Dallas, Texas 75248 Millennium Jet Center, L.L.C. 4702 George Hattaway Dallas, Texas 75248 Ari Ben
Aviator, Inc. 4651 Airport Parkway Dallas, Texas 75248 Million Air Dallas 4300 West Grove Dallas, Texas 75248 R. Stem Limited Partnership 4553 Keller Springs Road Dallas, Texas 75248
E.U.A. Air Support, Inc. I Mission Air 4500 Oaire Chennault Dallas, Texas 75248 Cherry-Air, Inc. 4584 Claire Chennault Road Dallas, Texas 75248 EA Project No. 13451.01.0002 
MANAGEMENT CERTIFICATION (Continued) This management ofMercury Air Center, Inc. is committed to providing the manpower, equipment, facilities and materials required to establish precautionary
measures and to expeditiously control and remove any oil discharged from the UST facilities operated by Mercury Air Center, Inc. at 4788 Roscoe Turner Street and 15409 Addison Road,
Dallas, Texas. By signature, I certify that I have reviewed and approved this SPCC Plan and have authority to commit the resources required to implement it. The SPCC plan will be implemented
as described herein. Signature:_________________􀁾􀀠Name and Title:, _________________ This management of Millennium Jet Center, L.L.C. is committed to providing the manpower, equipment,
facilities.and materials required to establish precautionary measures and to expeditiously control and remove any oil discharged from the UST facility operated by Millennium Jet Center,
L.L.C. at 4788 Roscoe Turner Street, Dallas, Texas. By signature, I certify that I have reviewed and approved this SPCC Plan and have authority to commit the resources required to implement
it. The SPCC plan will be implemented as described herein. Signature:___________________ Name and Title:, _________________ This management of Ari Ben Aviator,lnc. is committed to providing
the manpower, equipment, facilities and materials required to establish precautionary measures and to expeditiously control and remove any oil discharged from the UST facilities operated
by Ari . Ben Aviator, Inc. at 4788 Roscoe Turner Street, Dallas, Texas. By signature, I certify that I have reviewed and approved this SPCC Plan and have authority to commit the resources
required to implement it. The SPCC plan will be implemented as described herein. Signature:,___________________ , .'. Name and Title: _________________ l'lA Project No, 13457.01.0002

MANAGEMENT CERTIFICATION (Continued) This management of Million Air Dallas is committed to providing the manpower, equipment. facilities and materials required to establish precautionary
measures and to expeditiously control and remove any oil discharged from the UST facilities operated by Million Air: Dallas at 15409 Addison Road, Dallas, Texas. By signature, I certify
that I have reviewed and approved this SPCC Plan and have authority to commit the resources required to implement it. The SPCC plan will be implemented as descnbed herein. Signature:_________________
_ Name and Title: _________________ This management ofR. Stern Limited Partnership is committed to providing the manpower, equipment, facilities, and materials required to establish
precautionary measures and to expeditiously control and remove any oil discharged from the UST facilities operated by R. Stern limited Partnership at 15411 Addison Road, Dallas, Texas.
By signature, I certify that I have reviewed and approved this SPCC Plan and have authority to commit the resources required to implement it. The SPCC plan will be implemented as descnbed
herein. Signature:__________________ Name and Title:.________________ This management ofE.U.A. Air Support, Inc.!Mission Air is committed to providing the manpower, equipment, facilities
and materials required to establish precantionary measures and to expeditiously control and remove any oil discharged from the UST facilities operated by E.U.A. Air Support, Inc. I Mission
Air at 15407 Addison Road, Dallas, Texas. By signature, I certify that I have reviewed and approVed this SPCC Plan and have authority to commit the resources required to implement it.
The SPCC plan will be implemented as descnbed herein. Signature:___________________ Name and Title: ________________ EA Project No, 13457.01.0002 
MANAGEMENT CERTIFICATION (Continued) This management of Cberry-Air, Inc. is committed to providing the manpower, equipment, facilities and materials required to establish precautionary
measures and to expeditiously control and remove any oil discharged from the UST facilities operated by Cherry-Air. Inc. at 15405 Addison Road, Dallas, Texas. By signature. I certify
that I have reviewed and approved this SPCC Plan and have authority to commit the resources requited to implement it. The SPCC plan will be implemented as described herein. Signature:________________
__ Name and TitIe: _________________ EA Project No. I34S7.01.0002 
SPILL PREVENTION CONTROL AND COUNTERMEASURES PLAN ADDISON AIRPORT FUEL FARM TABLE OF CONTENTS 1. INTRODUC110N..........................................................................................
..................... 1 1.1 Prupose.....•................. .......... ... ... .........•................. ...... ...... .... ....................... ........... 1 1.2 Applicability...................
......................................................................................... 1 1.3 Plan Availability .....................................................................................
................. 1 1.4 Plan Review ............................................................................................................. 1 1.5 Plan Amendments .......................
' ............................................................................ 2 1.6 Submissions.......................................................................................................
...... 2 2. GENERAL INFORMATION.............•..•.................•......•...................................•................ 4 2.1 Name of Facility ..................................................
.................................................... 4 2.2 Type ofFacility ....................................................................................................... 4 2.3
Location of Facility ................................................................................................. 4 2.4 Name and Address of Owner/Operator .......•...............................
............................ 4 3. DESCRIPTION AND LOCATION OF OIUFUEL STORAGE ........................................ 6 3.1 Location of the Tanks .......•............................................
.......................................... 6 3.2 Date of Installation andlor Most Recent Tightness Test ......................................... 7 3.3 Facility Transfer Operations ..................
.................................................................. 8 3.4 Spilllncidents.....................................􀁾.........•....................... : ..................................
9 3.5 Assessment of Potential Spills ................................................................................ 9 3.6 Facility Drainage .........................................................
.......................................... 10 4. SPnL PREVENTION AND CONTROL MEASURES................................................... 12 4.1 Volume Control ........................................
............................................................. 12 4.2 Procedures for the Receipt and Unloading of Materials ....................................... 12 4.3 Spill Prevention
Equipment .................................................................................. 14 4.4 Preventive Maintenance Inspection ofFuel StoragelDispensing Facilities ............................
.................................................................................... 15 4.5 Spill Prevention Inspection ...............................................................................
.... 15 4.6 Employee Training in Spill Prevention Response._ .............................................􀁾􀀠16 4.7 Testing and Inspection Procedures ............ ; ....•; ..........................
..... ; ................. , ... 16 4.8 Security............................................􀁾􀀠............................................................... : ..... 17 EA Project No.
134S7.0J.(lOO2 
SPILL PREVENTION CONTROL AND COUNTERMEASURES PLAN ADDISON AIRPORT FUEL FARM TABLE OF CONTENTS (cont'd) 5. OlllFUEL SPILL CONTINGENCY PLAN .............................................................
........ 18 5.1 Spill Containment Equipment ............................................................................... 18 5.2 Notification........................................................
.................................................... 18 5.3 Spill Response Organization ................................................................................. 19 5.4 Response
Action .................................................................................................... 20 5.5 Oeanup..............................................................................
.................................... 21 5.6 Documentation ...................................................................................................... 21 5.7 Information to
be Supplied and Recorded ............................................................. 21 FIGURES Figure 1 -USGS 7.5 Minute Addison. Texas Quadrangle Figure 2 -Site Map . Figure 3 -Site
Map illustrating Site Drainage APPENDICES Appendix A -Photograpbs Appendix B -Spill Prevention Inspection Checklist Appendix C -Safety Manual/Spillage Clean-up and Disposal Procedure
Appendix D -Spill Incident Report Appendix E -Emergency Telepbone Numbers 􀁾􀀠'. . EA Proje<:t No. 13457.0UXlO2 
SPILL PREVENTION CONTROL AND COUNTERMEASURE PLAN 1. INTRODUCTION 1.1 Purpose This Spill Prevention Control and Countermeasures Plan (SPCC Plan) has been prepared to conform to 40 CFR,
Part 112, Oil Pollution Prevention. The SPCC Plan is to be used as a guidance document for preventing petroleum product releases from the Addison Airport fuel farm into or upon the waters
of the State ofTexas. 1.2 Applicability A SPCC Plan is required for underground storage facilities that store oil and oil products in excess of 42,000 gallons. Oil is defined as u...
oil of any kind in any form, including but not limited to petroleum, fuel oil, sludge, oil refuse, and oil mixed with water other than dredged spoil." This SPCC i>lan addresses all requirements
stipUlated in 40 CFR, Part 112 and the State ofTexas, Substance Spill Prevention and Control Act of 1975. 1.3 Plan Availability The SPCC Plan has been prepared for the fuel farm located
at the Addison Airport. The SPCC Plan covers each operator operating underground storage tanks located in the fuel farm. Each operator ofa facility for which this SPCC plan covers is
required to maintain a complete copy of the SPCC Plan at their place ofbusiness. The Plan must be made available to Environmental Protection Agency (EPA) or Texas Natural Resources Conservation
Commission (TNRCC) personnel for onsite review anytime during normal working hours. 1.4 Plan Review The owner or operatoi' is required to review the SPCC Plan at least once every three
years. EA Project No. !3457.01.0()(J21 
1.5 Plan Amendments The SPCC Plan will be amended and re-certified whenever: (1) There is a change in facility design, construction, operation or maintenance that materially affects
the facility's potential to discharge oil, (2) Required by the EPA or TNRCC after review of the SPCC plan, submitted because of a spill/release event, or (3) The three (3) year review
indicates that a proven technological advance in prevention or control will significantly decrease the likelihood ofa spill/release occurrence. Review and/or amendment dates must also
be indicated on the SPCC Plan. 1.6 Submissions The SPCC Plan and any amendments to the Plan must be submitted to the appropriate Federal and State agencies in the event of the facility
having discharged more than 1,000 U.S. gallons of oil into navigable waters in a single spill/release event or having discharged oil in harmful quantities, into or upon navigable waters
in two spill events within any twelve month period. Harmful quantities include those which violate applicable water quality standards or cause a f1lm, sheen, or discoloration of the
surface of the water or cause a sludge or emulsion to be deposited beneath the surface of the water. Within 60 days of the occurrence of either of these two conditions, the operator
must submit to both the EPA Regional Administrator and the TNRCC Regional Manager, the following information: (1) name of facility, (2) name(s) of the owner or operator of the facility,
(3) location of the facility, (4) date of initial facility operation, (5) maximum storage or handling capacity ofthe facility and current normal daily. throughput,. .... (6). description
of the facility. including maps, flow diagrams, and topographical maps, (7) a complete copy of the SPCC Plan including any amendments, (8) an explicit and definitive failure analysis
of the system or subsystem causing the spill/release(s) to occur and which examines and provides the circumstance(s) responsible for said failure(s), (9) the corrective actions and/or
countermeasures taken or contemplated to minimize the possibility ofrecurrence, 􀁾􀀬􀀠" (10) additional preventive measures taken or contemplated to minimize the possibility of recurrence,
EA Project No, 13457.01.00022 
(11) such other information as the EPA Regional Administrator may reasonably require pertinent to the Plan or spill event(s). The TNRCC Regional Manager may review the information and
make recommendations to the EPA. 􀁾􀀠. " EA ProjOCl /010.13457.01.00023 
2. GENERAL INFORMATION 2.1 Name of Facility: Addison Airport Fuel Farm 2.2 Type of Facility: Bulk Fuel Storage Facility 2.3 Location ofFacility: Addison Road @Roscoe Turner Street Dallas
(Dallas County), Texas 2.4 Name and Address of Owner/Operator: Owner Town of Addison 16801 Westgrove Road Addison, Texas 75001 Facility Operators . Mercury Air Center, Inc. 4400 Glenn
Curtis Dallas, Texas 75248 Millennium Jet Center, L.L.C. 4702 George Hattaway Dallas, Texas 75248 Ali Ben Aviator, Inc. 4651 Airport Parkway Dallas, Texas 75248 Million Air Dallas 4300
West Grove Dallas, Texas 75248 R. Stem Limited Partnership 4553 Keller Springs Road Dallas, Texas 75248 E.U.A. Air Support, Inc./Mission Air 4500 Claire Chennault Dallas, Texas 75248
􀀮􀁾􀀠. " EA Projea No. 13457.01.00024 
2.4 Name and Address ofOwner/Operator (cont'd): Cherry-Air, Inc. 4584 Claire Chennault Road Dallas, Texas 75248 􀀮􀁾􀀠. " EA Prqjed No. 13457,01.1)(1025 
3. DESCRIPflON AND LOCATION OF OIL/FUEL STORAGE The Addison Airport Fuel Farm is a bulk fuel storage facility utilized in airport fueling operations. The fuel farm consists of29 underground
storage tanks (USTs) in seven separate facilities. A total of seven UST operators store unleaded gasoline, aviation gasoline, and Jet A fuel in the USTs. A remote fuel dispenser is located
on a concrete tarmac approximately 300 ft north-northwest ofthe fuel farm area. 3.1 Location of the Tanks The Addison Airport Fuel Farm is located in the southeastern portion ofthe airport
property, south of the intersection ofAddison Road and Roscoe Turner Street in Dallas, Texas (Figure I). The northern most UST installation is located approximately 60 ft south ofthe
intersection of Addison Road and Roscoe Turner Street, with the southern most UST installation being located approximately 700 ft south of the intersection (Figure 2). For the purposes
ofthis SPCC plan, the facilities will be identified as Facilities #1-#7. Facility # 1 is located approximately 60 ft south ofthe intersection of Roscoe Turner Street and Addison Road
at 47&8 Roscoe Turner Street, Dallas, Texas, (Figure 2, Photo 1). The facility contains eleven USTs operated by three separate operators. Two of the eleven USTs are 1,000 gallon steel
sump tanks that are not in use. Millennium Jet Center, L.L.C. operates one 2,000 gallon unleaded gasoline tank, two 12,000 gallon aviation gasoline tanks, and two 12,000 gallon Jet A
fuel tanks. Air-Ben Aviator, Inc. operates two 12,000 gallon aviation gasoline tanks. Mercury Air Center, Inc. operates one 12,000 gallon Jet A fuel tank and one 17,000 gallon Jet A
fuel tank. A remote fuel dispenser located on a concrete tarmac approximately 300 ft north of the facility is connected by underground piping to the two 12,000 gallon aviation gasoline
tanks operated by Millennium Jet Center, L.L.C. (Figure 2, Photo 2). Facility #2 is located approximately 180 ft south of the intersection ofRoscoe Turner Street and Addison Road at
15409 Addison Road, Dallas, Texas, (Figure 2, Photo 3). The facility consists of five USTs operated by Million Air Dallas. The facility contains one 5,000 gallon aviation gasoline tank;
one 12,000 gallon aviation gasoline tank; and three 12,000 gallon Jet A fuel tanks. Facility #3 is located 􀁾􀁰􀁰􀁲􀁯􀁸􀁩􀁭􀁡􀁴􀁥􀁬􀁹􀀠280 ft south ofthe intersection ofRoscoe Turner
Street and Addison Road at 15411 Addison Road, Dallas, Texas, (Figure 2, Photo 4). The facility consists oftwo USTs opersted by the R. Stem Umited Partnership. The facility contains
two 12,000 gallon aviation gasoline tanks. Facility #4 is located approximately 460 ft south of the intersection ofRoscoe Turner Street and Addison Road at 15409 Addison Road, Dallas,
Texas, (Figure 2, Photo 5). The facility consists ofthree USTs operated by Mercury Air Center, Inc. The facility contains one 4,000 gallon unleaded gasoline tank and two 12,000 gallon
aviation gasoline tanks. EA Project No. 13457.01.00026 
Facility #5 is located approximately 530 ft south of the intersection of Roscoe Turner Street and Addison Road at 15411 Addison Road, Dallas, Texas (Figure 2, Photo 6). The facility
consists of six USTs operated by E.U.A. Air Support, Inc. I Mission Air. The facility contains one 4,000 gallon unleaded gasoline tank; two 12,000 gallon aviation gasoline tanks; and
three 12,000 gallon Jet A fuel tanks. The USTs located in this facility are not currently in use and will require upgrades to meet current EPA and TNRCC regulations prior to rerurning
to service. Facility #6 is located approximately 590 ft south of the intersection of Roscoe Turner Street and Addison Road at 15409 Addison Road, Dallas, Texas (Figure 2, Photo 7). The
facility consists of two USTs operated by the R. Stem Limited Partnership. The facility contains two 12,000 gallon Jet A fuel tanks. Facility #7 is located approximately 690 ft south
of the intersection of Roscoe Turner Street and Addison Road at 15405 Addison Road, Dallas, Texas (Figure Figure 2, Photo 8). The facility consists of two USTs operated by Cherry Air.
The facility contains two 12,000 gallon Jet A fuel tanks. 3.2 Date of Installation and/or Most Recent Tightness Test AccoI,"ding to the cuqent TNRCC Underground Storage Tank Registration
Form, USTs located in Facility #1 were instailed between 1957 and 1979. Two 12,000 gallon USTs containing aviation gasoline and the 17,000 gallon UST containing Jet A fuel were installed
in 1957. Two 12,000 gallon USTs containing aviation gasolirie and the 1,000 gallon surnp tanks were installed in 1967. Three 12,000 gallon USTs containing Jet A were installed in 1979.
According to airport personnel, all of the USTs in Facility #1 were tightness tested in 1998. According to the current TNRCC Underground Storage Tank Registration Form, USTs located
in Facility #2 were installed in 1982. It has been reported that all of the USTs in Facility #2 were tightness tested in 1998. According to the current TNRCC Underground Storage Tank
Registration Form, USTs located in Facility #3 were installed in 1982. It has been reported that all of the USTs in Facility #3 were tightness tested in 1998. According to the current
TNRCC 􀁕􀁮􀁤􀁥􀁾􀁧􀁲􀁯􀁵􀁮􀁤􀀠Storage Tank Registration Form, USTs located in Facility #4 were installed in 1985. It has been reported that all of the USTs in Facility #4 were tightness
tested in 1998. . According to the current TNRCC Underground Storage Tank Registration Form, USTs located in Facility #5 were instalJed in 1982. It has been reported that all of the
USTs in Facility #5 were not tightness tested in 1998, as they are currently not in use. Acoording to the current TNRCC Underground Storage Tank Registration Form, USTs located in Facility
#6 were installed in 1982. It has been reported that all of the USTs in Facility #6 were tightness tested in 1998. EA Project No. 13457.01.00027 
According to the current TNRCC Underground Storage Tank Registration Form, USTs located in Facility #7 were installed in 1983. It has been reported that all ofthe USTs in Facility #4
were tightness tested in 1998. 3.3 Facility Transfer Operations Unleaded gasoline, aviation gasoline, and Jet A fuel are delivered to USTs in the airport fuel farm by transport trucks.
The transport trucks transfer fuel to each UST by a flexible hydrocarbon resistant hose connected to the fill neck ofthe UST. The fuel is then allowed to empty to the UST under the influence
ofgravity. Tanker trucks park in the gravel driveway that runs through the fuel farm area during the fuel transfer. Facilities # I, 412, and #3 are filled from the gravel driveway on
the western side of each facility, while the USTs in Facilities #4, #5, #6, and #7 are filled from the driveway on the eastern side of each facility (Figure 2). Aviation gasoline and
Jet A fuel are transferred from USTs in the fuel farm to fueling trucks, which transport the fuel fuel to aircraft on airport property. The USTs are connected to an above ground fuel
pump which is connected to the fueling truck by a flexible hydrocarbon resistant hose. Product piping from the UST to the pump is nnder suction, with the hose between the pump and the
fuel truck nnder pressure. Separate pumps are utilized for each type of aircraft fuel stored at each facility: A remote dispenser transfers aviation gasoline from USTs in the fuel farm
to aircraft on the tarmac. The remote dispenser is connected to the USTs by pressurized below ground piping. The hose connecting the fill nozzle to the dispenser is under pressure. The
line is connected to a sensitive leak detection system. Facility# 1 contains separate pumps for Jet A fuel and aviation gasoline, which are connected to the USTs by above ground piping.
A pump used for Jet A fuel is located in the southwestern comer of the facility. This pump is connected to the two 12,000 gallon Jet A fuel tanks operated by Millennium Jet Center, L.L.C.
Fuel trucks using this pump park in the driveway adjacent to the southwestern comer ofthe facility. One pump used for Jet A fuel and one pump used for aviation gasoline are located in
the northeast comer of the facility. The Jet A fuel pump is connected to the 12,000 gallon Jet A fuel tank and the 17,000 gallon Jet A fuel tank operated by Mercury Air Center, Inc.
The aviation gasoline pump is connected to the two 12,000 gallon aviation gasoline tanks operated by Ari-Ben Aviator, Inc. Fueling trucks using these pumps park in the gravel driveway
on the eastern side of thefacility. A fuel diSpenser connected by . underground metal piping to the 2,000 gallon unleaded gasoline tank operated by Millennium Jet Center, L.L.C. transfers
Unleaded gasoline to vehicles. The fill nozzle for the unleaded gasoline dispenser is connected to the dispenser by above ground piping to allow ve!llcles to fuel at the northwest corner
of the facility. The remote fuel dispenser located on a concrete tarmac approximately 300 ft north-northwest of the facility is connected to the two 12,000 gallon aviation gasoline tanks
operated by Millennium Jet Center, L.L.C. (Figure 2, Photo 2). -. -. EA Project No. I:l4S7.0l.00028 
Facility #2 contains separate pumps for Jet A fuel and aviation gasoline, which are connected to the USTs by above ground piping. Both pumps are located on the western portion ofthe
facility. Fuel trucks being loaded at the facility park in the driveway adjacent to the western side of the facility. Facility #3 contains one pump for aviation gasoline. The pump is
connected to the USTs by below ground piping. The pump is located on the western comer ofthe facility. Fueling trucks load in the gravel driveway on the western side of the facility.
Facility #4 contains one pump for aviation gasoline. The pump is connected to the USTs by above ground piping, and is located on the eastern portion of the facility. Fueling trucks load
in the gravel driveway east of the facility. Unleaded gasoline is transferred from the unleaded gasoline UST to vehicles by an above ground fuel dispenser connected to the UST by underground
metal piping. Vehicles fueled by the dispenser park in the gravel drive east of the facility. Facility #5 contains separate pumps for Jet A fuel and aviation gasoline, which are connected
to the USTs by above ground piping. Both pumps are located on the eastern portion of the facility. Fueling trucks load in.the gravel driveway east of the facility. A fuel dispenser connected
to the UST by underground metal piping transfers unleaded gasoline from the unleaded gasoline UST to vehicles. Vehicles using the unleaded gasoline dispenser load in the driveway east
ofthe facility. Facility #6 contains one pump for Jet A fuel. The pump is connected to the USTs by above ground piping, and is located on the eastern portion ofthe facility. Fueling
trucks load in the gravel driveway east of the facility. Facility #7 contains one pump for Jet A fuel. The pump is connected to the USTs by below ground piping, and is located on the
eastern portion of the facility. Fueling trucks load in the gravel driveway east ofthe facility. 3.4 Spill Incidents To date, no reportable quantity spills, as defined in 40 CFR, Part
112 have have occurred at any of the UST facilities in the Addison Airport fuel farm. 3.5 Assessment of Potential Spills Releases would impact the fuel farm area in the following manner:
An underground fuelline break or a ruptured fuel tank would release gasoline or Jet A fuel to the site.. ubsurface. Subsurface soils would be impacted.'. EAProjectNo.13457.01.00029 
A surface spill to the gravel drive in the fuel farm could be caused by a ruptured above ground fuel or dispenser line, fuel truck line or component, or by overfilling a fueling truck.
Triggering of the on I off switches or the safety emergency shutoff switches (ifavailable) will shut down the fuel dispensing pumps, allowing no additional fuel to leave the UST or the
dispenser pumps. Transport trucks designed with compartment tanks, with the largest compartment size being approximately 4,500 gallons, could release up to 4,500 gallons in a catastrophic
tank failure. A hose failure on a transport truck could release fuel at approximately 200 gallons per minute or less to the gravel drive in the fuel farm. 3.6 Facility Drainage Surface
drainage on the gravel drive west of Facilities # I, #2, and #3 (Figure 3, Photo 9) is toward a shallow drainage ditch located approximately 40 ft west of the facilities at the farthest
point. A six ft chain link fence and largeconcrete blocks border the eastern side of the drainage ditch. The drainage ditch leads to a below ground concrete culvert, which travels southeast beneath the gravel driveway to another
shallow drainage ditch. This ditch flows south, eventually emptying to the Addison Road right of way and the storm sewer system. Surface drainage on the gravel drive east ofFacility
#1 is toward the boundary between Addison Airport property and the Addison Road right of way. The eastern boundaries of Facilities #2 and #3 are located on the border of Addison Airport
property and the Addison Road right of way. Drainage on the eastern side of these facilities is toward the Addison Road right of way. Surface drainage on the gravel drive east of Facilities
#4, #5, and #6 (Figure 3, Photo 10) is toward the boundary of Addison Airport property and the Addison Road right of way. The gravel drive also drains to the south and enters the Addison
Road right of way at the south approach to the fuel farm area. Drainage on the western side of Facilities #4, #5, and #6 is toward the southwest to an inlet of a below ground concrete
culvert (photo 12, Photo 13), which dralns to a shallow dralnage ditch located approximately 40 ft west of Facility #7 (Photo 15). Drainage on the eastern side of Facility #7 is to the
east towards the Addison Road right of way. Drainage on the western side of Facility #7 is to the west toward the drainage ditch. The drainage ditch drains to the southwest portion of
airport property, where it joins a main drainage channel leading to the Addison storm sewer system (photo 14, Photo 15). . The driveway in the fuel farm does not have an impervious cover.
This auows surface water to inf.t.ltrate the soil (photos 1, 3, and 4). No concrete curbs or other drainage controls are present between the UST installations and gravel driveway with
the Addison Road right of way, although a small ridge of soil in the right of way landscaping may act as a drainage control feature. Figure 3 displays the drainage pattern for the fuel
farm area. '. EA Project No. 13457.01.(100210 
Surface drainage from the remote aviation gasoline dispenser located north ofFacility #1 (Figure 3) is toward a shallow drainage ditch located approximately 100 ft west-southwest at
its nearest point. The tarmac surrounding the dispenser is consbUcted ofconcrete, which does not allow surface water to infiltrate the soil. A grassy area on the edge ofthe tarmac controls
the runoff of surface water and drainage (photo 2), with a slight depression in the center of the grassy area directing runoff to the drainage ditch (photo 11). Figure 3 displays the
drainage pattern for the taunac surrounding the remote dispenser. Pictures ofthe remote dispenser are included in Appendix A. Drainage ditches located near the fuel farm area gather
surface runoff, and direct runoff to either the storm sewer located in the Addison Road right ofway, or to the storm sewer system located in the Lindbergh Road right of way near the
southern end ofthe airport. The storm sewer system in the Addison Road right ofway drains to White Rock Creek approximately 2,000 ft east of the airport. White Rock creek runs into White
Rock Lake in Dallas, Texas. The drainage ditch gathering runoff from the tarmac surrounding the remote dispenser runs west to a main drainage channel for the airport. The main drainage
channel runs to the southern end of airport property where it enters the storm sewer system located in the Lindbergh Road right of way. The storm sewer drains to Rawhide Creek located
approximately 3,000 feet southwest ofthe airport (Figure 1). " EA Project No. 13457.0I.(X:10211 
4. SPILL PREVENTION AND CONTROL MEASURES 4.1 Volume Control Fuel volumes will be inventoried at least once each working day or twice a day iffuel is being off loaded. Control is maintained
on incorning, outgoing, and static volumes on a daily basis for each fuel tank. Daily fuel logs will be kept and reconciled monthly. Inventory reconcillation and tank gauging will be
conducted in accordance with the procedures specified in 30 TAC 334.50, with complete and accurate inventory control records maintained as specified in 30 TAC 334.10. 4.2 Procedures
for the Receipt, Unloading and Loading ofMaterials Tank truck loading/unloading procedures must meet the requirements and regulations established by the Department ofTransportation.
The following procedures will be followed: (1) A representative of the operator, who will check identification markings on the tank to ensure the correct product is being delivered,
will meet tanker trucks entering the facillties. (2) The operator's representative will ensure that the spill containment sump valve on the tank is closed securely. (3) The representative
of the operator will measure the fuel level in the UST with a graduated stick before and after unloading. (4) The driver shall park the vehicle in the unloading area and properly connect
the hose attachment to the tank fil] pipes. (5) The driver must remain with the transport throughout the offloading process. (6) Once the fluid has been transferred to the tank and the
filling process completed, the driver must remove all hoses and attachments from the fill pipes, ensuring that fluid does not spill from them in the process. (7) The driver shall perform
a final inventory and record the fluid volume on the inventory log sheet. (8) All fill pipes must be securely capped. (9) The driver will ensure that the outlets on the vehicle are closed
properly before departing . ... '. BA Project No. 134S7.0UX)0212 
The following procedures will be followed for fuel truck loading and unloading: (1) Any fuel trucks used in loading and unloading will be inspected daily in accordance with Town ofAddison
Fuel PeIlllit requirements. (2) A representative ofthe UST operator, who is properly trained in. the use ofthe UST system, must operate fuel trucks. entering the site for loading offuel.
(3) The operator shall parle the vehicle in the loading area and properly connect the hose attachment to the fuel truck. (4) The operator's representative will ensure that all hose I
pump connections are secorely connected. (5) The operator's representative must remain with the fuel truck throughout the loading process. (6) Once the fluid bas been transferred from
the tank to the fuel truck, the operator's representative must remove all hoses and attachments from the fuel truck, ensuring that fluid does not spill from them in the process. (7)
All hoses must be secured in an upright position and not allowed to spill any fluid remaining in the hose from the loading process. (8) The driver will ensure that the outIetsfmlets
on the fuel truck are closed properly before. departing 􀁾􀀠. '. EA Project No. 13457.01.000213 
4.3 Spill Prevention Equipment The UST facilities located in the Addison AiIport fuel farm area are equipped with equipment to minimize the potential of fuel releases from the UST systems.
Each system is equipped differently. USTs are provided with ball floats or flow restriction devices that will automatically shut off or sloW the flow into the tank when the fuel level
reaches 90% of the tank capacity, or provided with an audible and visible alarm to alert the person responsible for the fuel delivery when the fuel level reaches 90% of the tank capacity.
Ifan audible alarm system is utilized, the tank is also equipped with a valve or other device designed to automatically shut off the flow into the tank when the fuel level reaches 98%
of the tank capacity. Fuel dispensers are equipped with automatic shutoff nozzles to prevent overfilling of vehicles or aircraft. Underground fuel lines are equipped with leak detection
devices if they operate under pressure. USTs also are equipped with tight fill fittings and and I or liquid tight sumps around fill necks. Emergency shutoffs or electrical breakers that
may be utilized to shut off pumps in an emergency for each facility are located in areas with easy access. The facilities are equipped as follows: Facility #1 -The 12,000 gallon USTs
containing aviation gasoline are equipped with shut off valves. Two of these USTs have product piping which operate under pressure and are equipped with line leak detectC!rs. The three
12,000 gallon USTs containing Jet A fuel are equipped with flow restrictor valves. One of these USTs is also equipped with an audible and visible level alarm and shut off valve. The
17,000 gallon UST containing Jet A fuel is equipped with a flow restrictor valve, audible and visible level alarm and shut off valve. The 2,000 gallon UST containing unleaded gasoline
is equipped with a shut off valve and the gasoline dispenser connected to it has an automatic shutoff nozzle. The 1,000 gallon sump tanks are out of service and have not been provided
with any spill prevention equipment. All USTs in the facility, with the exception of the 1,000 gallon sump tanks, are fitted with tight fill fittings and spill containment I liquid tight
sumps. The pumps located in the northeastern corner of the facility have an emergency shutoff switch located on their pump control panel. The pump located in the southwestern corner
of the facility does not have an emergency shutoff switch. Electrical breakers for all of the USTs in this facility are located approximately 15 ft east in a breaker box attached to
the electrical service pole. The emergency shutoff switch for the remote dispenser is /, .J. <1f{tf>" located adjacent to the fueling building located approximately 50 ft south of the
􀁤􀁩􀁳􀁰􀁥􀁮􀁳􀁥􀁲􀁴􀁾􀁻􀀺􀀮􀀠/J/"'I",..􀁾􀁥􀀬􀀠Facility#2-All USTs are equipped with an audible and visible level alarm and either shut.off valves or flow restrictors. All USTs in the
facility are fitted with tight fill fittings. Both fuel pumps located at the facility are equipped with emergency emergency shutoff switches on their control' panels. Electrical breakers
for all of the USTs in this facility are located at the northeastern corner of the facility in a breaker box attached to the electrical service pole. Facility #3 -All USTs in this facility
are equipped with shut off valves or flow restrictors. All USTs in the facility are fitted with tight fIll fittings and spill containment I liquid tight sumps. 􀁎􀁾􀀮􀁥􀁭􀁥􀁲􀁧􀁥􀁮􀁣􀁹shutoff
switches are located on the control panel for the pump, although electrical breiakers for all of the USTs in this facility are located at the northeastern corner of Facility #2 in a
breaker box attached to the electrical service pole. 14 EA Proje<:!No.I34S7.01.0002 
Facility #4 -The 12,000 gallon USTs containing aviation gasoline are equipped with flow restrictor valves. The 4,000 gallon UST containing unleaded gasoline is equipped with a shut off
valve and the gasoline dispenser connected to it has an automatic shutoff nozzle. No emergency shutoff switches are located on the control panel for the pump, although electrical breakers
for all of the USTs in this facility are located 15ft east of the facility in a breaker box attached to the electrical service pole. Facility #5 -The USTs in the facility are not equipped
with spill prevention devices. No emergency shutoff switches are located on the control panel for the pump. although electrical breakers for all of the USTs in this facility are located
15 iteast of the facility in a breaker box attached to the electrical service pole. The USTs located in this facility are not currently in use and will require upgrades to meet current
EPA and TNRCC regulations prior to returning to service. Facility #6 -Both USTs in this facility are equipped with shut off valves. Both USTs in the facility are fitted with tight fill
fittings and spill containment /liquid tight sumps. No emergency shutoff switches are located on the control panel for the pump, although electrical breakers for all of the USTs in this
facility are located 15 ft east of the facility in a breaker box attached to the electrical service pole. . Facility #7 -Both USTs in this facility are equipped with shut off valves.
Both USTs in the facility are fitted with tight fill fittings and spill containment /liquid tight sumps. No emergency shutoff switches are located on the control panel for the pnmp.
although electrical breakers for the USTs in this facility are located immediately south of the facility in a breaker box attached to the electrical service pole. 4.4 Preventive Maintenance
Inspection of Fuel StorageIDispensing Facilities Each operator's maintenance personnel shall conduct a preventive maintenance inspection (PMI) on the UST facilities daily. Pumps, dispensers.
piping, valves, and tanks shall be inspected for proper working order and leaks. This includes, among other things. the visual inspection of all accessible piping and dispensing equipment
in the UST systems. The personnel conducting the PM! will notify their supervisor about any problems identified in order to make repairs to any equipment as soon as possible. . 4.5 Spill
Prevention Inspection Each operator 01) a monthly basis will perform a spill prevention inspection. Appendix B contains a Spill Prevention Checklist to assist in the inspections. The
completed checklist shall be filed as part of the Spill Management records. EAProjeotNo.134S7.o1.000215 
4.6 Employee Training in Spill Prevention and Response Operator personnel involved in fueling operations will be instructed in the operation and maintenance of equipment and applicable
pollution control laws, rules, and regulations to prevent the discharge of oil/fuel. Ifpersonnel responsible for fueling equipment have not been instructed as described above, they may
not operate fueling equipment. This training must be provided initially for all personnel involved in fueling operations, and will updated on an annual basis to apprise personnel of
changes that have occurred in the past year. New personnel involved in fueling operations who have not had the initial training will be provided with this training prior to taking part
in fueling operations. Each operator will also desiguate a person who will conduct spill prevention briefmgs at least twice per year for all employees who are involved with handling,
receipt, storage, and/or cleanup of oil/fuel. These briefings will be used to explain the SPCC Plan and also describe known spill events or failures, malfunctioning components, recently
developed precautionary measures, changes in relevant regulations, and spill response actions and equipment. The SPCC Plan will be updated as necessary and a copy will be kept at each
UST facility. Operators will also maintain documentation oftraining sessions and briefmgs cnnducted in association 'with the 'SPCC Plan for at least three years. 4.7 Testing and Inspection
Procedures USTs in each facility will be tightness tested annually in accordance with federal, state, and local regulations. Testing documentation and records will be kept on me with
each UST facility operator for at least three years. All personnel associated with the operation of the UST facilities in the Addison Airport fuel farm shall be trained in the inspection
of UST equipment. Operator management shall be notified if deficiencies are observed, so that those may be addressed. I!APmje<t No. I34S7.01.()00216 
4.8 Security A chain link security fence with locking gates encloses each UST facility. Fuel dispensing equipment at each facility is located inside the security fences. All control
panels associated with dispenSing equipment are also located inside the security fences, with additional locking on I off switches provided for additional security. Each facility is
accessible for fuel dispensing 24 hours a day by authorized operator personnel. When the facilities are not in use, the power to the dispensing equipment will be turned off, with all
locking mechanisms locked in the off position and the gates on the security fence locked shut. Ifemergency shutoff switches are not located on pump control panels, electrical breakers
inside the electrical breaker panels may be used as an emergency shutoff. Breaker panels for all facilities are located outside the security fences. A six foot chain link security fence
surrounds the tarmac where the remote dispenser is located. The tarmac and dispenser is accessible through an unmanned security gate with an automated security system. The emergency
shutoff switch for the remote dispenser is located adjacent to the fueling building located approximately 50 ft south of the dispenser. Facility lighting is sufficient for discovery
ofspills occurring during hours ofdarkness and to minimize vandalism. " '. I!A Project No. 134S7.01.(XlO217 
5. OIL/FUEL SPILL CONTINGENCY PLAN This section contains the OillFuel Spill Contingency Plan for the UST facilities located in the fuel farm area at Addison Airport in Dallas, Texas.
The plan is designed to assist operator personnel and contractors in responding rapidly and effectively to fuel spills that may result from operations of the UST facilities. 5.1 Spill
Containment Equipment Hydrocarbon absorbent booms, socks, and pads will be stored at the fuel farm area in sufficient quantity to contain or prevent fuel spills from entering storm water
inlets. The materials stored will be of sufficient size to cover storm water inlets that might be threatened in the event of a spill, or stop the spill in route to the storm water inlet.
Spill containment materials will be stored in small fenced compounds located in the common areas and will be available for use by all UST operators. The first compound is located at
the northern end ofFacility #2, and the second is located at the southern edge ofFacility #6 (Figure 2). As these materials are for use by all operators, the initial cost ofthese materials
will be shared equally by the UST operators. The operators, at their cost, will replenish any spill containment materiais used in spill response. 5.2 Notification In the event of a fuel
spill at any ofthe UST facilities or at the remote fuel dispenser, the operator's OD-scene personnel will immediately notify their supervisor. The supervisor will be notified ofall petroleum
spills, regardless ofthe spill size. Ifa spill cannot be immediately stopped, controlled, or contained by merely closing a valve or shutting down a pump, the next action to be taken
by anyone discovering the spill is to evacuate all personnel not involved in cleanup of the spill from the immediate vicinity ofthe spill. Ifthe spill is less than five (5) gallons and
it is contained on asphalt or concrete pavement, without any part of the spill entering drainage or storm sewer, pipes or ditches, notification of airport management is not required.
However, cleanup of the spill is required. Ifthe spill is . greater than five (5) gallons, enters a storm sewer, moves off the property, or is on an area not covered by asphalt or concrete
pavement, the operator will immediately notify the Addison Ftte Department and airport management. l!A Proj... NO.13451.0l.(X)Q218 
The operator responsible for the spill should notify the following people or departments: • Airport Management • Addison Fire Department in the event of a fire or if the spill is greater
than 5 gallons, has a potential of migrating offsite, enters a storm sewer, or is on an area not covered by asphalt or concrete pavement. • Local spill contractor ifneeded. • Tank draining
contractor if needed. • Fuel Facility equipment repair contractor ifneeded. • Electrician ifneeded • Operator's Environmental Consultant. The operator respoIl$ible for the spill will
notify the Texas Natural Resources Conservation Commission (TNRCC) within twenty-four (24) hours of the spill incident as required ifthe spill is over 25 gallons in volume. 5.3 Spill
Response Organization The on scene personnel for the operator will contact their supervisor. To ensure appropriate response to spills, the supervisor will assign a person or persons
to perform his role in his absence. This person shall have the same responsibilities as the supervisor for implementing this SPCCPlan. The supervisor will: • Determine the cause or source
of the spill and ensure that immediate response actions tostop the leak and control the spill have been, or are being, taken. . • Determine the spill size and assess hazard to personnel,
buildings, and environment. • Evacuate all non-essential personnel if necessary. • Initiate oil/fuel containment action with the required manpower, equipment, and materials in accordance
with the Response Action outlined below. EA Project No. 13457.01.000219 
• Notify the Addison Fire Department in the event of a fire or if the spill is greater . than 5 gallons, has a potential of migrating offsite, enters a storm sewer, or is on an area
not covered by asphalt or concrete pavement. • Notify Airport Management. • Ensure that there is no smoking in the area of the spill. • Alert neighbors ifpersonal danger is possible
or if the spill is not totally contained on the facility's property. • Initiate cleanup and removal operations in accordance with the Response Action outlined below. • Maintain a chronological
log ofevents and communication during the spill incident, containment, and cleanup. Record times, names, conversations, instructions given and instructions received. • Tab? photographs
of the spill containment and cleanup activities. 5.4 Response Action In the event of an oil/fuel spill at the UST facilities, the operator's personnel at the facility should take the
following immediate response actions: • Stop the leak, ifpossible (Emergency shut-off switch, closing valves, etc.). • Call the Fire Department if appropriate. • Evacuate non-essential
personnel. • Construct a dam around the spill using dry absorbent material or any other . material available to prevent the spill from impacting adjacent properties, stoi:m. sewer, etc.
• Place plastic liners, containment booms or pillows over any of the storm sewer inlets in the pathway of the release. • Prevent traffic from entering the spill area. • Control access
to the spill site. '. • Ensure that no ignition sources are present or allowed into the spill area. EA Project No. 134S7.QI.()OO220 
• Arrange with the environmental consultant for proper disposal ofrecovered product and obtain pennits, as required. 5.5 Cleanup Ifoperator personnel cannot effectively perform a timely
and thorough cleanup, an outside contractor will be called. The operator's environmental consultant sbould also be contacted for the collection ofany soil or groundwater samples needed
to conftrm cleanup ofthe spill, and to assist in the proper characterization and handling of any wastes produced by cleanup activities. Contractor contact phone numbers are listed in
Appendix E at the end ofthe Plan. The list of available contractors should be updated annually. 5.6 Documentation Documentation ofthe spill incident is the responSibility ofthe operator
and will include: • Chronological log ofevents and communication during the incident. • Description of response actions and their effectiveness. • Photographs of the incident. • Completion
ofthe attached incident report (Appendix D). 5.7 Information to be Supplied and Recorded A written record ofall pertinent information given to the local, state, and federal agencies,
and the agency responses are to he retained by the operator. The following must be included: • Name, address, location, and telephone number ofthe Facility. • . Name, title, and te!ephone
number ofthe person reporting the spill. • Spill location within the Facility. • Material spilled. • Volume/quantity ofspill. • Action taken for containment and cleanup. • Bodies ofwater/streams
involved and the extent of actual/potential pollution. EA Projoc:t No. 13457.01.000221 
• Alternate Facility contacts. • A chronology of events occurred, including actions taken and explanations. " EA Project No. 13457.01.()00222 
FIGURES Figure 1 • USGS 7.S Minute Addison, Texas Quadrangle Figure 2 • Site Map Figure 3 • Site Map mustrating Site Drainage .... " EA Project No. 13457.01.0002 
•• ,. •, .,'/'A 􀀱􀀺􀁾􀀮􀀠\, '."I • I) "" 􀁾􀀠....􀁾􀀬􀀮􀀮􀀮􀀬􀀮􀀠, , ' .. ,> ," i • .. 1.·••• .􀁾􀀭􀀭􀀭􀀭􀀭􀀮􀀭􀀻􀀺􀀭􀀭􀀪􀀭...􀁾􀀠-.' 􀁾..-FIGURE I. U.S.G.S. (7.5 MINUTE 1981) ADDISON,
TX QUADRANGLE SHOWING TOPOGRAPHY, DRAINAGE, AND EA ENGINEERING, LAND USE IN THE VIClNITY OF THE ADDISON AIRPORT SCIENCE, AND FUEL FARM AREA, ROSCOE TURNER STREET @ADDISON TECHNOLOGY,
INC. ROAD, DALLAS, TEXAS, 
APPENDIX A PHOTOGRAPHS EA Project No. 134S7.01.l1002 
Photo I: View ofUST Facility # 1. Fuel pumps are located in northeast and southwest comers, with the unleaded gasoline dispenser located on northern end offacility. Emergency shut offis
located in electrical breaker box on power pole east offacility. View is to the southeast. Photo 2: View ofremote dispenser located on tarmac north ofFacility #1. Emergency shutoff for
dispenser located on control panel east ofsmall building located in backb'Tolmd. View is to the south. 
Photo 3: View ofFacility #2.Fue1 pump located on western side ofthe facility. Emergency shut offare located on pump control panels inside fence and in electrical breaker box on power
pole located at the northeastern corner offacility (not shown). Photo 4: View ofFacility #3. Fuel pump is located on the western side offacility. Emergency shut offis located in electrical
breaker box on power pole located at the northeastern corner ofFacility #2 (not shown). 
Photo 5: View ofFacility #4. Fuel pump and unleaded gasoline dispenser are located on eastern side of the facility. Emergency shut offis located in breaker box on power pole located
on eastern side ofdriveway, east ofthe facility (not shown). View is to the east. Photo 6: View ofFacility #5. Fuel pump is located on the eastern side ofthe facility. Emergency shut
offis located ill the electrical breaker box 011 power pole located on castern side ofdriveway, east of the facility (not shown). View is to the east. 
Photo 7: View ofFacility #6. Fuel pump is located on the eastern side of the facility. Emergency shut off is located in the electrical breaker box on power pole located on eastern side
ofdriveway, east ofthe facility (not shown). View is to the east. Photo 8: View ofFacility #7. Fuel pump is located on the eastern side ofthe facility. Emergency shut off is located
in the electrical breaker box on power pole located at the southeastern corner of the facility. View is to the northeast. 
􀁊􀁩􀁾􀀿􀁾􀁜􀁉􀁾􀀡􀁾􀀧􀂷􀀮􀀠t Photo 9: View ofdrainage ditch located west ofFacilities #1, #2,and #3. The ditch flows to another drainage ditch loqated along the Addison Road right ofway
south of Facilities #2 and #3, and east ofFacilities #4, #5, and #6. 􀁖􀁩􀁾􀁷..􀁩􀀮􀁾􀀧􀁾􀁙􀀢􀀩􀁜􀁴􀀧􀀿􀀬􀀬􀀬􀀬􀀠.. ", -.-. .' .: . ' . ...-. --...􀁾􀀠Photo 10: View ofgrave) drive and
drainage ditch located adjacent to Addison Road right of way. Ditch is located south ofFacilities #2 & #3, and east ofFacilities #4, #5, and #6. The ditch flows south to the Addison
Road right of way. The ditch is connected to the drainage ditch located to the west ofFacilities #1, #2, and #3. View is to the sOllth, Note: Emergency shutoffs for Facilities #4, #5,
and #6 located 011 power poles on east side ofgravel drive. 
Photo II: View of drainage ditch located west of remote dispenser. The ditch drains to a main drainage channel that flows to the southern end of the airport and enters the storm sewer
system in the Lindberg Road right of way. View is to the west. Photo 12: View oflow area located west ofFacilities #4, #5, and #6. This area drains to the entrance of a concrete culvert
on tile west side of the fence shown in the backl,'TOund of the photo. The culvert drains to a drainage ditch located west ofFacility #7. View is to the south. 
Photo 13: View of area that receives drainage from low area west ofFacilities #4, #5, and #6. The concrete culvert entrance is located inside the fenced storage area on the left portion
ofthe photo. The culvert drains to drainage ditch located west ofFacility #7. View is to the northwest. o ••-: i 􀁾􀁾􀁾􀀭􀁾.. ,'.: -.􀁾􀀯􀁾􀀧􀀧􀀧􀀧􀀧􀀧􀀧􀀧􀀧􀀧􀀧􀀧􀀭􀀬􀁊􀀺􀀻􀀮􀁾􀀠',....􀁾􀀮􀀬􀀻􀀮􀀻..
,..... ," 􀀭􀁾􀀭'.-:.􀁾􀀠􀁾􀀠􀀺􀁾􀁩􀀻􀀮􀀮-.: . 􀀬􀀮􀀻􀁾􀀧􀀠-'-.. 􀀺􀁾.....􀁟􀀺􀀺􀁾.. 􀀻􀁾􀀾􀁟􀀮􀀢􀀬...J'_. " .,-'.-" 􀀮􀁾􀀮􀀠􀁾􀀻􀀮􀀮􀀧􀀠., • . ..... :-4,_ -.:, ... 􀀬􀁟􀁉􀀧􀀪􀁾􀀮􀀠􀁾􀀢􀀮􀀮􀀮􀀮􀀮􀀮􀀮
􀀮􀀮􀀭􀀮􀀠, --ror... 􀁾􀂷􀀠...... ' "' 'W.:}ii5? 􀁾􀀮􀀮􀀮􀀺􀀺􀁾.... ...,..... 􀁾􀀠... -' 􀁾􀀮--.-.. 􀁾.. 􀁾􀁾􀀮􀀭􀁾􀀮􀀬􀀮􀀮􀀮􀀠• ;.,." "4l1'i ..;:e;",.􀁾􀁾􀀮􀀮􀁺􀀭􀀭􀁾􀀻􀀺􀀻􀀵􀁾􀁾􀀧􀀭􀁾􀀺􀀢􀀬􀀠􀀧􀀮􀁾
􀀭􀀺􀁾􀁾􀀭􀀭􀀭􀁾􀀠􀁦􀁩􀁬􀀮􀀺􀀻􀀮􀁾􀀮􀀠􀁾􀀠. _"'. ::;c, :_:-.. ' 􀀮􀀮􀀮􀀺􀀺􀀮􀁪􀀭􀁾􀀧􀀱􀀭􀀬􀀺􀁾􀀻􀀮􀀧􀀺􀁾􀁾􀀧􀀠.t, . Photo 14: View of drainageditch located west ofFacility #7. The ditch receives drainage from the area surrounding the facility as well as from a culvert that drains the area west ofFacilities #4, #5, and #6.
The ditch flows west to another drainage ditch. View is to the west. 
Photo 15: View of drainage ditch that receives flow from ditch located west of Facility #7. The ditch flows to the southern end ofairport property and enters the storm sewer system located
in the Lindberg Road right ofway. View is to the south. '. 
APPENDIXB SPILL PREVENTION INSPEcrION CHECKLIST ....'. EA Pn>jecl No. 13457.01.0002 
SPILL PREVENTION CHECKLIST _ The following should be inspected on a monthly basis: Containment Equipment Date ofInspection Initials ofInspector Action Needed Action Taken Pumps Valves
Piping Absorbent Materials FaciliQt Drainage Access Evidence of SpillslLeaks I Ton!<-• Hoses Signs CapsIVenlS Dispensers Pad Areas Tanks Piping Valves Fittings Pumps EA Project No. 13457.01.0002
i 
APPENDIXC SAFETY MANUAL SPILLAGE CLEAN·UP AND DISPOSAL PROCEDURE 􀁾􀀠. " I!APrqjectNo.I3457.01.0002 
PURPOSE GENERAL LIGHTOILS BEAVYOILS HAZARDOUS MATERIALS Spillage and Clean-Up and Disposal To describe the action to be taken to clean up and dispose of spills of light and heavY petroleum
products. AIl spills of light or heavy petroleum products whether large or small must be contained immediately and the proper authorities must be notified. Ught oil products are generally
vehicle and aviation gasoline, kerosene, diesel fuel, Jet A fuel, and fuel additives. If the spill is not too large, an absorbent material cim be used. (Due to the rapid rate of evaporation
ofgasoline, small spills will usually evaporate/dissipate.) After the spill is absorbed, the contaminated absorbent material must be placed in a 4 roll., or heavier. plastic bag. These
bags must then be disposed of at a state approved hazardous waste Facility, according to the EPA Small Generator Law. Ifthe spill is large and enters a separator system or dry welis.
contact a clean-up agency that has vaCuum equipped trucks for removal and disposal. Included in this category are lube oils and #6 heating oil used in boilers. These products are to
be picked up by using an ADSORBENT material. Adsorbent mean,s the product does not absorb, but clings to !be material used which is hydrophobic polyfJ.!m (looks like cheerleader "pom
poms"). After adsorbing the product, the contaminated adsorbent material must be placed in containers. pails, tanks, drums, etc., or in 4 roll. or heavier plastic bags. This must be
done immediately after use or the hazardons material will release from the adsorbent material and create a larger spill. Disposal of !be, contaminated, adsorbent materials must be handled
the same as the' contaminated absorbent materials described above. ( •:-., 􀀧􀁾􀀠,'. EA Project No.l3451.Ol.00q:z 
APPENDIXD SPILL INCIDENT REPORT 􀁾􀀠. " EA Pro;ea No, 13457.01.(1002 
SPILL INCIDENT REPORT DESCRIBE INCIDENT: (Include all facts relating to the cause of the incident; stopping. containing and clean-up of spill. and contacts/conversations with outside
agencies.) INCIDENT DATE: ___________ TIME:-----------TIME:_____________REPORT DATE:,_____________ FACn..ITYNAME:_____________ DISTRICT:_____________ ADDRESS: (street. county. state),
________________________ PHONE:___________PERSON REPORTlNG:, __________ PHONE:_______________MGR. IN CHARGE AT SCENE: ______ STORAGE CAPACITY (IN GAlLONS) Gasoline'--_____AvGas,_________
Jet A._____Otber______ PRODUCT SPllLED:______APPROX. GAlLONS:, ______ TIME:___________TOPPED DATE: ___________ How Discovered: ____________________________ Extent of actual or potential
water pollution: _____________________ Nearest body of water or tributary: Distance:____________ Any part ofspill enter drainage or sanitary sewers, pipes or ditcbesi__________-'-_ Spill
contained on premises? ' Spill contained on an asphalt or concrete pavement area'1___.,.-______-::-___--'-_ '. EA Project No, 134S7.0l.(XJ02 
TNRCC NOTIFICATION INFORMATION CONTRACTORS, FederallStatelCounty/City Agencies notified ofincident:________ CONTRACTOR/AGENCY REPRESENTATIVE:_______________ DATE:_____________________________________
___ PHONE:_____________________________________________________ Extent of injuries, ifany:_________________________ Steps being taken or proposed to contain and clean up spill:______________
Possible hazards to human health or the environment: __________o,--_____ 􀁾􀀠. '. EA Project No. 134S7.0J.(XlO2 
APPENDIXE EMERGENCY TELEPHONE NUMBERS 􀁾􀀠. ", EA PiujectNo. 13451,Ql,0002 
EMERGENCY NOTIFICATION TELEPHONE NUMBERS TITLE NAME TELEPHONE AATI Director of Operations and Maintenance Zane Ryan, Brandon Griesel (972) 248-7733 Fire Department Addison Fire Department
911 Tank Draining Company U.S. Filter (214) 637-6264 Tank Draining Company Cactus Vac Truck Service (972) 446-0200 Environmental Protection Agency (214) 665-2222 National Response Center
(800) 424-8802 Texas Natural Resources Conservation Commission (817) 469-6750 EA ProjOCl No. 13457.01.(l(102 
ADDISON MUNICIPAL AIRPORT STORM WATER POLLUTION PREVENTION PLAN (SWPPP) Prepared for: Addison Municipal Airport Addison, Texas August 1998 Prepared by: EA Engineering, Science and Technology
1420 Valwood Parkway, Suite 170 Carrollton, Texas 75006 SA Project No. 13457.02 
Addison Municipal Airport Storm Water Pollution Prevention Plan (SWPPP) August, 1998 Prepared for: Addison Municipal Airport Prepared by: EA Engineering, Science, and Technology, Inc.
1420 Valwood Parkway Suite 170 Carrollton, Texas 75006 (972) 484-1420 _-􀁾􀀡􀀺􀀬•.u."*'",.,,\.,. *....,.' "tMichael Krause I projec"sc' entist .. ,,' ".*4o.I, ,; ........ : •••1. t ;:.
􀁾􀀢􀀷􀀠ANLEV o:............:"il 􀁾..:··..··.. 􀂷􀁾􀂷􀂷􀂷􀂷􀂷􀂷􀂷􀁗􀁾􀁣􀁥􀀮􀁬􀀠 • /. /. '7 Stl!llley D. Wace, P.E. Date Senior Engri{ Chuck J. Place Project Manager EA Proje<t No. 13457.02

August 1998 CERTIFICATION I certiJY under penalty oflaw that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to
assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry ofthe person or persons who manage the system, or those persons directly
responsible for gathering the information, the information submitted is, to the best of my knowledge and belief; true, accurate, and complete. I am aware that there are significant penalties
for submitting false information, including the possibility offine and imprisonment for knowing violations. :3.. 􀀭􀀮􀁾􀁾􀀭􀀸􀁵􀁍􀁾8.4-71 Sam Stuart Date Airport Manager Addison Municipal
Airparl Storm Water Pollution Prevention Plan iii 
August 1998 ADDISON MUNICIPAL AIRPORT SPILL PREVENTION CONTROL AND COUNTERMEASURES PLAN TABLE OF CONTENTS 1. INTRODUCTION..............................................................................
............................. 1 1.1 Purpose................................................................................................................ 1 . 1.2 Site Description ..............
: ...................................................................................... 1 1.3 Plan Availability ......................................................................................
............. 1 I.4 Plan Review and Amendment ............................................................................... 1 1.5 Comprehensive Site Compliance Evaluation ..........................
...............................2 2. POLLUTION PREVENTION TEAM ............................................................................. 4 " 3. SITE ASSESSMENT ....................................
.................................................................. 5 3.1 Drainage ..............................................................................................................
5 3.2 Non-Stormwater Discharge .................................................................................. 5 3.3 Significant Spills and Leaks ..................................................
................................ 6 4. SITE lNSPECTIONS ...................................................................................................... 7 4.1 Methodology........................
................................................................................ 7 4.2 Potential Pollution Control Activities ....................................................................
7 4.2.1 Aircraft and Vehicle Fueling ..................................................................... 7 4.2.2 Aircraft, Vehicle and Equipment Maintenance ........................................
... 7 4.2.3 Aircraft Painting ....................................................................................... 8 4.2.4 Aircraft and Vehicle Washing ............................................
....................... 8 4.2.5 Chemical Storage ...................................................................................... 8 4.2.6 Equipment DegreasingIWashing ..........................
..................................... 8 4.2.7 Aircraft Storage ........................................................................................ 8 4.2.8 Fuel Storage ..........................
................................................................. 8 4.2.9 Floor Washdown ...................................................................................... 8 4.2.10
PesticidefHerbicide Usage......................................................................... 8 4.2.11 Deicing....................................................................................
................. 8 4.2.12 Manufacturing .......................................................................................... 9 4.3 Inspection Results ..........................................
...................................................... 9 5. GENERAL BEST MANAGEI\.1ENT PRACTICES ....................................................... 10 5.1 Good Housekeeping .....................
........................................................... : .......... 10 5.2 Preventive Maintenance ......................................................................................
11 5.3 Visual Inspections .............................................................................................. 11 Addison Municipal Aitport Stoml Water Pollution Prevention
Plan iv 
August 1998 ADDISON MUNICIPAL AIRPORT STORM WATER POLLUTION PREVENTION PLAN TABLE OF CONTENTS (cont'd) 5.4 Spill Prevention and Response ..............................................................
.............. 11 5.5 Training ......................... , ................................................................................... 12 6. ACTIVITY SPECIFIC BEST MANAGEMENT
PRACTICES ..................................... 13 6.1 BMPs for Fueling Stations ................................................................................. 13 6.2 BMPs for Vehicle
and Equipment Maintenance .................................................. 13 6.3 BMPs for Vehicle and Equipment Washing ........................................................ 13
6.4 BMPs for Liquid Storage in Above-Ground Tanks ............................................. 13 6.5 BMPs for ChemicallPetroleum Container Storage ..............................................
13 TABLES Table 1 Spill Response Locations Table 2 Potential Pollutant Sources and Site-Specific Best Management Practices Table 3 SURUnary ofExposed Materials Identified During Facility
Inspections FIGURES Figure I -Airport Layout Plan Figure 2 -Site Drainage APPENDICES Appendix A -Inspection Checklist Addison MUllicipal Airporl Slorlll Water Pollution Prevention Plan
v 
August /998 STORM WATER POLLUTION PREVENTION PLAN 1. INTRODUCTION 1.1 Purpose This Storm Water Pollution Prevention Plan (SWPPP) has been prepared in response to requirements ofthe U.S.
Environmental Protection Agency (EPA) final National Pollutant Discharge Elimination System Storm Water Multi-Sector General Permit for Industrial Activities (multi-sector permit). The
final permit is contained in 60 FR 51109-51319. AddisonMunicipal Airport has obtained a multi-sector general permit from the EPA for storm water discharges. Most ofthe tenants at the
airport have submitted Notice ofIntents (NOIs) to be co-permittees on this permit. Dischargers subject to the multi-sector permit are required to prepare and implement a SWPPP. The objectives
of this SWPPP are to (J) identifY potential sources ofpollution that may reasonably be expected to affect the quality ofstorm water discharges associated with industrial activity, (2)
describe and ensure the implementation ofpractices that are used to reduce the pollutants in in storm water discharges associated with industrial activity, and (3) ensure compliance
with regulatory requirements. 1.2 Site Description Addison Municipal Airport is located twelve miles north ofdowntown Dallas. The airport is one ofthe busiest general aviation airports
in the country, averaging over 160,000 takeoffs and landings per year on a single runway. The airport is aligned along a north/south transect, paralleling Addison Road to the east and
Midway Road to the west. The total area ofthe airport is approximately 365 acres, ofwhich approximately eighty percent is covered by impervious surfaces (either buildings or pavement).
A site map showing the overall airport layout and the locations ofthe tenants are shown on Figure 1. 1.3 Plan Availability A copy ofthe SWPPP will be maintained by each multi-sector
permit copermittee. The plan will be maintained for a minimum ofone year after t he permit expires. 1.4 Plan Review and Amendment Addison Municipal Airpor/Siorm Water Pollution Prevention
Plan Page Page 1 
August 1998 This plan will be reviewed annually by the Pollution Prevention Team. The plan will be amended whenever there is a change in operation, maintenance or construction at the
airport. The plan will be amended to identifY changes in tenants. 1.5 Comprehensive Site Compliance Evaluation It is a requirement ofthe permit that a comprehensive compliance evaluation
ofthe facility be conducted once per year (part XI.SJ.(4» This evaluation provides a basis for assessing the overall effectiveness ofthis Swppp and is to be used to verifY that the SWPPP
is accurate or that it needs to be updated to reflect current conditions. The facility will be inspected to include the following:' . • Assessment ofgood housekeeping practices; • Areas
identified for preventive maintenance and routine inspection; • Storm water drainage areas for evidence of pollutants entering the drainage system; • Visual inspection of storm water
outfalls for color, foam, outfall staining, visible sheens, and dry weather flow; • Evaluation ofthe effectiveness ofmeasures to reduce pollutant loadings and whether additional measures
are needed; • Evaluation ofstructural measures, sediment controls, and other storm water management practices to ensure effective operation; and • Equipment needed to implement the SWPPP,
such as spill response equipment. A report summarizing the scope ofthe evaluation, personnel making the evaluation, the date(s) of the evaluation, major observations relating to the
implementation ofthe SWPPP, and corrective actions taken as described in the preceding paragraph shall be made and retained as part of the SWPPP for at least 3 years from the date ofthe
evaluation. The report shall identifY any incidents of noncompliance. Ifno incidents of noncompliance are noted the report shall contain a certification that the facility is in compliance
with the SWPPP and the permit. The certification shall be signed by a responsible corporate officer of the airport and shall contain the following certification: I certify under penalty
oflaw that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered
and evaluated the iliformatioll submitted. Based on my inquiry ofthe person or persons who manage the system. or those persons directly respansible for gathering the iliformation, the
iliforniation submitted is, to the best ofmy knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information. including
the possibility offine and imprisonmentfor knowing violations. Addison Municipal Ai/pOri Stann Waler Pollution Prevenlion Plan Page 2 
August 1998 Ifrequired, the SWPPP must be revised as needed within two weeks ofthe inspection. Any necessary changes must be implemented within twelve weeks ofthe inspection (part XlS.3.(4)(b».
Addison Municipal Airporl Stonn Water Pollution Prevention Plan Page 3 
August 1998 2. POLLUTION PREVENTION TEAM MI. Greg Wutfers is the Assistant Director of Operations. His pollution prevention responsibilities include coordinating plan development and
implementation; coordinating training programs; noting tenant and/or activity changes; conducting site inspections; maintaining records and inspection reports; and revising the SWPPP
as needed. Each tenant shall identifY a person who will be responsible for implementing the SWPPP for their respective facility. EA Engineering, Science and Technology completed the
site assessment and prepared the plan under the direction ofAATI. EA will provide support as requested by AATI. MI. Stan Wallace, P.E. will serve as the point of contact'for EA. . Addison
Municipal Airport SIoI7U Water Pollution Prevention Plan Page 4 
August 1998 3. SITE ASSESSMENT 3.1 Drainage Surface water runoff from Addison Municipal Airport is collected in storm drains and ditches located around the airport. The storm sewer system
is owned and operated by the Town of Addison. Discharges from the airport storm sewers eventually drain into one of three creeks: Hutton Branch in Carrollton, Rawhide Creek in Farmers
Branch, or White Rock Creek in Dallas. The drainage areas on the airport, along with the airport inflows and outfalls are shown on attached Figure 1. The majority of the airport drains
to the outfall located on the western side of the airport. Water from the grassy northern area, the eastern developed area north ofTaxiway U, the runway and taxiways north ofTaiiway
E, and the western developed area north ofTaxiway E (off airport activities) all drain to this outfall. After leaving the airport property this water runs into Hutton Branch approximately
three miles west ofthe airport. This area receives offsite inflow on the north side ofthe airport and on the northeast side. Approximately 49% ofthis drainage area is impervious. Drainage
from the southern part ofthe airport is collected in storm drains which discharge to surface ditches located southeast and southwest ofthe runway. These surface ditches convey stormwater
off ofthe airport property to the south. This drainage eventually ends up in Rawhide Creek approximately 3,000 ft southwest ofthe airport. This area drains the south end ofthe runway,
the tenants south ofAirport Parkway (except for the Fire Department), and off airport activities located west ofTaxiway B. Approximately 54% ofthis drainage area is impervious. Water
from the eastern side of the airport between Taxiways E and U runs east via surface drainage to Addison Road where it is collected in the storm drains and conveyed to White Rock Creek
approximately 2,000 ft east ofthe airport. Approximately 84% ofthis drainage area is impervious. A small area on the western side of the airport (Co-op Hangars A, B, and C) drains via
surface . drainage offsite where it is collected in the Addison storm sewer system and conveyed to Rawhide Creek. Approximately 100% ofthis drainage area is impervious. 3.2 Non-Stormwater
Discharge A drainage study was conducted at the airport in January 1998 to determine ifthe floor drains in the hangars were connected to the storm or sanitary sewer systems. It was determined
that most ofthe drains were collected to the sanitary sewer. However, drains from the following facilities were determined to be connected to the storm sewer: Addison MuniCipal Airport
Stann Water Pollution Prevention Plan Page 5 
August 1998 Tenant Location on Site Map Classic Aviation Building # 16A on site map R. Stern (ADS Aircraft) Building # 23 on site map AATI Maintenance Shop Building #12 on site map T-Hangar
(City) Building #19 on site map The outfalls from the storm drains were inspected on 15 May 1998. The southwest outfall was dry. The southeast outfilll had a small flow. The reason for
this dry weather flow was not determined. Once all ofthe floor drains have been plugged or routed to the sanitary sewer this flow should be investigated again, Additionally, a significant
flow was observed from the west outfall, however, significant inflows to the airport were observed on both the north and east sides ofthe airport that lead to this outfall. These inflows
from outside the airport property are probably the source ofthe dry weather flow from the airport. The following are typically allowable non-storm water discharges: • Discharges from
fire fighting activities • Fire hydrant flushings • Potable water sources including waterline flushings • Irrigation drainage • Lawn watering • Uncontaminated ground water • Foundation
or footing drains where flows are not contaminated with process materials • Discharges from springs • Routine exterior building washdown which does not use detergents or other compounds
• Pavement wash waters where spills or leaks oftoxic or hazardous materials have not occurred and where detergents are not used . • Air-conditioning condensate 3.3 Significant Spills
and Leaks During a previous investigation ofthe airport, Camp, Dresser, and McKee identified spills that had been reported at the airport. This spills are summarized in Table 1. Addison
Municipal AiJ'pOrl Stann Water Pollulion Prevention Plan Page 6 
August 1998 4. SITE INSPECTIONS 4.1 Methodology In late 1997/early 1998 questionnaires were distributed to the airport tenants. These questionnaires requested information about the facility
operations, potential pollutant sources and existing best management practices (BMPs). The information from these questionnaires was used as a basis for on-site inspections. Between
May 26 through 29, 1998 the tenant facilities at the airport were inspected by personnel from Addison Airport ofTexas, Inc. (AATI) and EA Engineering, Science and Technology (EA). The'purposes
ofthis inspection were to (1) identifY what activities the tenants were performing, (2) identifY where these activities were being conducted, (3) identifY potential pollution causing
activities, and (4) identifY material stored or used on-site. Inspection results were recorded on a standardized checklist and were provided to AATI under a separate cover. A blank copy
of the checklist used is included in Appendix A. 4.2 Potential Pollution Causing Activities The following activities occurring at Addison Municipal Airport were identified as potentially
causing storm water pollution: 4.2.1 Aircraft and vehicle fueling. Fueling at Addison Municipal Airport is conducted primarily via fuel trucks. Several ofthe tenants operate fuel trucks
that load fuel from the underground storage tanks and transport it to the aircraft. Fueling is conducted outdoors due to fire code requirements and is conducted by most of the hangars
on the airport. A single self service fuel pump is located just north ofthe fuel farm location on the east side of the airport. Aircraft fueling could potentially release fuels due to
spills and leaks that happen during fuel delivery, spills caused by topping offtanks, or by overfills or accidents involving the fuel truck or airplane. Some ofthe operators provide
fuel for ground vehicles, which has similar storm water contamination potential. 4.2.2 Aircraft, vehicle and equipment maintenance. The majority ofthe tenants at the airport perform
maintenance on aircraft and/or aircraft components. Many ofthe tenants perform maintenance on their own vehicles and equipment. Many activities associated with aircraft maintenance can
generate wastes that could possibly contaminate storm water if not properly handled. During engine repair and service, parts may be cleaned using solvents or degreasers; fuel, oil or
other materials may be spilled during. the replacement offluids; fluids may drip from parked aircraft; greasy rags, oil filters, air filters, batteries, and waste coolant, oil, degreasers,
etc. are generated. Addison Municipal Airpol'l Stoml Woler Pollulion Prevention Plan Page 7 
August 1998 4.2.3 Aircraft painting. One tenant, Omniflight, had a large paint booth in their facility. Other tenants had smaller paint booths. Painting operations can contaminate storm
water during painting and paint removal, sanding or paint stripping or due to spilled paint or paint thinner. 4.2.4 Aircraft and vehicle washing. Several tenants indicated that they
washed or had aircraft washed at their facilities. Vehicles were observed being washed during the inspection. Wash water can contain high concentrations ofoil and grease, phosphates,
and high suspended solid loads (these and other potentially harmful substances can pollute storm 􀁷􀁡􀁴􀁥􀁾􀀠when deposited on the ground where they can be picked up by rainfall runoff).
Washwater is considered a process wastewater and needs to be covered by an National Pollutant Discharge Elimination System (NPDES) permit if it conducted outdoors or if washwater is
discharged directly to the ground or storm water drains. 4.2.5 Chemical storage. Storage ofchemicals could potentially contaminate storm water if spilled or leaked. Leaks may occur due
to external corrosion or structural failure, improper installation of storage facilities, spills and overfills due to operator error, failure of piping systems, or leaks or spills when
transferring chemicals. Most ofthe tenants at the airport stored chemicals. 4.2.6 Equipment degreasingfwashing. Many ofthe tenants had parts washers used to clean small parts using solvents.
The solvents or cleaning solutions could contaminate storm water if improperly handled. 4.2.7 Aircraft storage. Leaking oil, hydraulic fluids, fuel, etc. from stored aircraft could contaminate
stormwater. 4.2.8 Fuel storage. Six fuel farms are located at the airport. All fuel is stored in underground storage tanks. Spills or leaks can occur during fuel delivery, from leaks
in piping systems, or from leaking storage tanks. 4.2.9 Floor washdown. Periodically hangar floors are washed down. The residue on the floors may contain fuels, oil, or other chemicals
that could contaminate storm water. 4.2.10 Pesticidelherbicide usage. Addison Airport of Texas, Inc. uses pesticides and herbicides on the airport. These materials can contaminate storm
water if improperly stored or applied. 4.2.11 Deicing. Chemicals used for deicing aircraft and runways can be significant sources of storm water pollution. None of the tenants at the
airport indicated that they performed any deicing operations. Addison MUllicipal Ai1porl SlonlJ Water Pollution Prevention Plan Page 8 
August 1998 4.2.12 Manufacturing. One ofthe tenants, Keith Products, listed manufacturing as one of the on-site industrial activities. Depending upon what is being manufactured and the
type and location ofthe process, manufacturing could provide a source ofstorm water contamination. 4.3 INSPECTION RESULTS A listing ofthe tenants inspected, the potential pollutant-causing
activities they are conducting and the activity-specific BMPs for these activities are shown on Table 2. In addition to the sitespecific BMPs the tenants shall also implement the general
BMPs identified in Chapter 5. The activity-specific BMPs are described in Chapter 6. A listing ofthe exposed materials identified during the inspections are shown on Table 3. Addison
MuniCipal Airport Stann WaleI' Pollution Prevention Plan Page 9 
August 1998 5. GENERAL BEST MANAGEMENT PRACTICES The following best management practices have been identified. These are applicable to most of the tenants at Addison Municipal Airport
regardless of the activities being performed. 5.1 Good Housekeeping Good housekeeping practices are designed to maintain a clean and orderly work environment. This reduces the possibility
of accidental spills caused by mishandling of chemicals and equipment and should reduce safety hazards. Well maintained material and chemical storage areas will reduce the possibility
of storm water mixing with pollutants. Therefore, good housekeeping must be practiced at all locations including those that are indoors.• Maintain dry and clean floors and ground surfaces by using brooms, shovels, vacuum cleaners, or cleaning machines; • Regularly pick up and dispose ofgarbage and waste material; • Clean
those areas that flow to a storm drain by means other than hosing down (e.g. mopping, absorbents); • Routinely inspect the dumpsters to verifY verifY that they are covered; • Routinely
inspect and replace material placed in containment dikes, which may have lost its effectiveness to absorb spills or leaks; • Ensure that spill cleanup procedures are understood by personnel;
• Routinely inspect for leaks or conditions that could lead to discharges of pollutants that may contaminate storm water; • Use drip pans under leaking vehicles or equipment; • Inspect
drip pans and secondary containment areas after each rainfall (if necessary, empty after checking that the storm water is not contaminated); • Inspect for improper disposal of materials
down or the presence of non-storm water in storm drains; • Remove hoses to discourage outside washing; • Make personnel aware that some materials are not suitable for outdoor storage
(e.g. batteries), limit the length oftime material is stored outdoors, and consolidate areas for outdoor storage; • Use locks for valves, gates, faucets, and pumps to limit their use;
• Provide adequate aisle space to facilitate material transfer and easy access for inspections; • Store cOntainers, drums, and bags away from direct traffic 􀁲􀁯􀁵􀁴􀁾􀁳􀀠to prevent
accidental spills; • Stack containers according to manufacturer's instructions to avoid damaging the Addison Municipal Airpor/Stann Waler Pollutioll Prevention Plan Page 10 
August 1998 containers from improper weight distribution; • Store containers on pallets or similar devices to prevent corrosion ofthe containers which can result when containers come
in contact with moisture on the ground; • IdentifY all chemical substances present in the workplace; • Label all containers; • Incorporate information sessions on good housekeeping practices
into the facility's employee training program; , • Discuss good housekeeping at employee meetings; • Post bulletin boards with updated good housekeeping procedures, tips and reminders.
5.2 Preventive Maintenance Preventive maintenance consists of 􀁴􀁨􀁾􀀠inspection ofequipment, operational systems, outdoor storage tanks, and storm water management devices (e.g. oil/water
separators) to ensure that they are being adequately maintained to minimize the potential for failure. The preventive maintenance program is limited to equipment and systems whose breakdown
or failure could result in discharges of contaminants to storm drains. • Schedule routine preventive maintenance inspections for storm water pollution prevention equipment (oil/water
separators, sand traps, etc.) • Promptly repair or replace defective equipment found during inspections and testing; • Maintain records on preventive maintenance. 5.3 Visual Inspections
Routine inspections should be conducted to ensure that the elements ofthe SWPPP are in place and working properly. The potential pollutant sources identified in Table 2 should be inspected
on a monthly basis. • IdentifY qualified personnel who will inspect plant equipment and areas at appropriate intervals; • Track results of inspections to ensure that appropriate actions
are taken; • Maintain records ofall inspections. 5.4 Spill Prevention and Response Spill prevention and response procedures have been developed for the airport as part ofthe Spill Prevention,
Control and Countermeasures (SPCC) Plan {EA, 1998} and 'the Spill Response Plan (EA, 1998). Copies of these plans should be kept at the applicable tenant offices and should be reviewed
by the personnel involved. These plans apply primarily to the fuel handling tenants at Addi$(m MuniCipal Aitporl Storm Waler Pol/ution Prevention Plan Page II 
August 1998 the airport. Other tenants dealing with smaller quantities of oil or chemicals should: • Identify procedures used for cleaning up spills and inform personnel about these
procedures; • Provide the appropriate spill clean-up equipment to personnel • Report spills in accordance 􀁾􀁩􀁴􀁨􀀠Spill Response Plan. 5.5 Training Employees should be trained on pollution
prevention as part oftheir initial employee orientation training and after any release ofoil or chemicals. The training should include:, • Spill response procedures; • Good housekeeping
procedures • Prohibiting the pouring of non-storm water materials into storm drains; • Material handling procedures and storage requirements; • Not using running water to wash down fuel
dispensing, maintenance, or other areas where spills or leaks have occurred; • Prompt clean up ofspilled materials to prevent contamination ofrunoff; • Identifying locations for brooms,
vacuums, absorbents, foams, neutralizing agents, and other good housekeeping and spill-response equipment; • Checking aircraft, vehicles, and equipment for leaking fluids and using drip
pans or absorbents to collect fluids from unavoidable leaks; • . Instruction on securing drums and containers and checking for leaks and spills. Addison Municipal Airport Sionn Water
Pollution Prevention Plan Page 12 
Augu.11998 6. ACTMTY SPECIFIC BEST MANAGEMENT PRACTICES The following BMPs are applicable to the tenants perfonning the designated activities. 6.1 BMPs for fueling stations. • Install
spill and overflow protection; • Use dry cleanup methods for the fuel area (do not hose down spills); • Use proper petroleum spill control; • Fuel trucks shall carry absorbent materialslbooms
to clean up minor releases or to contain larger releases until additional materials can be obtained. 6.2 BMPs for vehicle and equipment maintenance • Check for leaking oil and fluids;
• Drain oil filters before disposal or recycling; • Don't pour liquid waste down the drains • Recycle engine fluids and batteries; • Segregate and label wastes; • Use drip pans to collect
fluids dripping from aircraft, vehicles, or equipment. 6.3 BMPs for vehicle and equipment washing • Use designated cleaning areas, either inside hangars with floor drains connected to
sanitary sewer or containerize wash water and dispose of properly. 6.4 BMPs for liquid storage in above-ground tanks • Install overflow protection devices; • Install protective guards
around tanks and piping if exposed to traffic areas; • Clearly tag or label valves to reduce human error; • Inspect tank system regularly; • Install secondary containment 6.5 BMPs for
chemicaVpetroleum container storage • Containers shall be compatible with the material being stored; • Properly label containers; • Use smaller containers whenever possible; • Store
materials indoors if possible. Large containers, 55 gallon drums and larger, shall be provided with secondary containment or stored away from exterior doors, unsealed walls, or floor
drains. Drums without secondary containment shall be placed on pallets.' to prevent corrosion and to allow inspection; • Containers stored outdoors shall be provided with secondary containment.
The secondary containment shall be large enough to Contain the largest container in storage Addison MuniCipal Airport Storm Water Pol/ulion Prevention Plan Page 13 
August 1998 and shall be covered to prevent the accumulation ofrainfall. • Outdoor storage areas shall be inspected on a weekly basis day. Leaks shall be promptly removed and the leaking
containers replaced. Addison MuniCipal Airport SlOl7n Water Pollution Prevention Plan Page 14 
FIGURES Figure 1 -Airport Layout Plan Figure 2 -Site Drainage 
r Referenced from Somurti 􀁄􀁵􀁮􀁬􀂫􀁲􀁩􀁢􀁯􀁾􀀠6: Company Tl,lbo. Oldohomo ADDISON AIRPORT-e:A ENGINEERING, SCIENCE. AND 'rECHNOLOC;Y 
::...-R!!lferene«l from Barnard O..,nkelberg &; Cc Tuf$1, O1\.IQhomo ADDISON AIRPORT-"'" AIRPORT LAYOUT PLAN EA e:NG1NEER1NO, SCIENCE:. ANO TECHNOLOCY 
TABLES Table I -Spill Response Locations Table 2 -Potential Pollutant Sources and Site-Specific Best Management Practices Table 3 -Summary of Exposed Materials Identified During Facility
Inspections 'J 
3 2/2/94 2/16/94 3 gallon Jet A 11127/97 location Addison Road FuelFamt) Drainage channel north of Millionaire FBO building the ofthe eastern toll Millionaire apron area -near one -somewhere
on runway. AATI indicated that this accident occurred on the main runway across from the Collins runway Av Group apron area 
TABLE 2 􀁊􀀻􀀧􀁜􀁪􀁩􀁾􀁩􀀧􀁩􀁴􀁩􀁾􀁛􀁐􀁑􀀡􀁬􀁁􀁀􀀺􀁩􀁩􀀺􀀺􀁳􀀮􀁴􀁩􀁪􀀧􀁩􀁪􀀧􀁾􀁾􀁳􀁈􀀻􀀧􀀡􀀺􀀻􀀡􀀻􀁛􀁬􀁭􀁛􀁪􀁭􀁩􀁭􀁲􀀺􀀺􀀠􀀺􀁩􀀻􀁩􀀱􀁦􀁉􀁔􀀱􀁾􀀺􀀱􀀮􀀻􀀤􀀮􀀺􀀱􀁾􀁾􀀧􀁓􀂷􀀠􀂷􀁾􀁾􀁭􀁾􀀺􀁩􀁡􀁾􀁾􀁲􀁾􀁾􀂷�
�􀁾􀁭􀁾􀀨􀁪􀁴􀂷􀁲􀁾􀁾􀀡􀁾􀁾􀁬􀀧􀀺􀀢􀀠;;:X" • Equipment maintenance conducted inside hangar. • Place drums inside secondary containment, smaller containers on shelves.• Equipment storage
conducted inside hangar. • Plug or reroute floor drain to sanitary sewer. Chemical storage conducted inside hangar, hangar is • Vehicle maintenance conducted inside hangar. • Follow
manufacturer's guidelines for herbicide/pesticideAddison Airport 􀁯􀁦􀁔􀁥􀀮􀁾􀁡􀁳􀀬􀀠Inc. I • application.subject to flooding. • Follow vehicle and equipment maintenance BMPs• Floor
drain connected to storm sewer. • Follow chemical/petroleum container storage BMPs• PesticidelHerbicide usage on airport. • Aircraft maintenance inside hangar. • Follow vehicle and equipment
maintenance BMPs. ADS Aircraft Services, Inc. I • Chemical storage inside hangar. • Follow vehicle and equipment washing BMPs Aircraft w;)j:ihinQ 􀁮􀁾􀁮􀁮􀁮􀁮􀁥􀁤􀀠outdoors. Follow c""
Follow vehicle and equipment maintenance BMPsAircraft maintenance conducted inside hangar.Aero Restorations ,"• Chcntical storage inside hangar near door. I: Follow chemical/petroleum
container storage BMPs . ..􀁾􀁾􀀠􀁾􀀠Aircraft maintenance conducted inside hangar. • Follow vehicle and equipment maintenance BMPs" • Chemical storage inside hangar. Follow vehicle and
equipment washing BMPs" Air·O Specialist I • Aircraft washed indoors Follow chemical/petroleum container storage BMPs" • Floor wash down • Properly dispose of floor wash down water.
• Outdoor • Follow vehicle and equipment maintenance BMPsAircraft maintenance conducted inside hangar.I • All American Aviation • Follow chemical/petroleum container storage BMPs• Chemical
storage inside hangar. Alrcratt maintenance conducted inside hangar. • Follow vehicle and equipment maintenance BMPs" Aircraft washing conducted inside hangar. • Follow vehicle and and
equipment washing BMPsAmerican Flyers I" • Follow chemical/petroleum container storage BMPs Floor wash down • Chemicals stored in shop next to bangar. " • Aircraft maintenance conducted
inside hangar. • Chemicals stored inside hangar. Waste oil stored Follow vehicle and equipment maintenance BMPs Amerislar Jet Charter, inc. outdoors in drums in overpacks. Follow chemical/petroleum
container storage BMPsI: • Equipment maintenance conducted inside hangar. Equi(lment storaE" Aircraft maintenance conducted inside hangar." Follow vehicle and equipment maintenance BMPs•
Chemical storage inside hangar. " • Follow vehicle and equipment washing BMPsAZAir, Inc. Aircraft storageI· Follow chemical/petroleum container storage BMPsAircraft washing outside.
" " " 
POLLUTANT SOURCES AND SITE-SPECIFIC BEST MANAGEMENT PRACTICES 􀁾􀀺􀀮􀀬.•.􀀬􀀺􀁅􀁾􀁦􀁾􀁩􀀺􀁩􀁴􀁩􀁾􀁲􀁾􀁾􀁮􀁩􀁊􀁴􀁾􀁮􀁴􀀺􀀺􀀤􀁾􀁜􀁩􀁴􀁾􀁾􀁮􀀺􀁭􀁮􀁭􀁦􀁩􀀡􀀺􀁭􀀺􀀺􀁩􀂷􀀺􀁈􀁉􀀺􀂷􀂷􀀧􀂷􀀺􀀠􀀺􀀺􀀺􀀮􀁾􀀠􀁐􀁡
􀁲􀁾􀀻􀀺􀀾JII.:>P""",,\,lVIl uuuu<,;\.( 11lO:>V"''''UVU';', u."'. • 􀁵􀁾􀁳􀀠inspecti""'" Follow chemical/petroleum container storage BMPsI • Chemical storage inside. I' 􀀭􀀭􀀭􀀭􀁾􀁾􀀬􀀠•
Aircraft maintenance conducted inside hangars. • Follow vehicle and equipment maintenance BMPs• Aircraft washing conducted outdoors. • Follow vehicle and equipment washing BMPsCavanaugh
Flight Museum I • Aircraft storage • Follow chemical/petroleum container storage BMPs• Oil storage outside. Some in secondary containment hers without. Aircraft maintenance conducted
inside hangar. • • Chemical Storage inside hangar or covered with • Follow vehicle and equipment maintenance BMPs secondary containment. • Follow chemical/petroleum container storage
BMPsCherry-Air, Inc. I • Aircraft fueling • Dispose'of or cover unneeded drums. • Fuc! storage in Fuel Fann #1 (2-12,000 gal Jet A USTs) • Em drums stored at north Details Aircraft Clcaning
and Supply (DACS) DFW Aero Mechanix, Inc. 'DSC Communications Corporation E.U.A. Air Support ,. Outside aircraft washing using containment boomlvacuum. • Indoor storage of dcgreaser,
soat:' and 20 􀁓􀁾􀀠• Aircraft maintenance conducted inside hangar. • Chemical storage -mineral spirits stored inside hangar, degreaser, waste oil, and soap stored outdoors in drums
and AST. 􀁾􀁵􀁩􀁰􀁭􀁥􀁬􀀠![ g • 􀁾􀀠 Aircraft. maintenance perfonned lH"".....!••• 􀁊􀀼􀁕􀁉􀀮􀀧􀁾􀀠 • Aircraft waslting inside hangar I : I : Chemical Storage inside hangar. Equipment
degreasing/washing using parts washer • Equipment storage • Floor wash Aircraft maintenance performed inside hangar. • Fuel storage -one 4,000 gal gasoline, tWo 12,000 gal• aviation
gasoline, and three 12,000 gal let A USTs in Fuel farm 114. Not currently in use. Sump fuel drums inside drum container. Aircraft fueling. Not currently in operation. • • Chemical storage
inside hangar. • Aircraft washing outside. • • Follow vehicle and equipment washing BMPs • Follow chemical/petroleum container storage BMPs ,: Follow vehicle and equipment maintenance
BMPs Follow chemieaVpetroleum container storage BMPs • Follow vehicle and equipment maintenance BMPs • Follow vehicle and equipment washing BMPs • Follow chemieaVpetroleum container
storage BMPs • Properly dispose offioor wash down water, • Install spill and overllow protection. • Follow fueling station BMPs when fueling operations resume. • Follow vehicle and equipment
washing BMPs • Follow chemical/petroleum container storage BMPs • Work wilh AATI and Inteljet to characterize and dispose of unmarked drum. 
2 POTENTIAL POLLUTANT SOURCES AND SITE·SPECIFIC BEST MANAGEMENT PRACTICES Flight Line (Associated Air) Frito-Lay, Inc. Hut (Cannel Property Management) Henlcy's Aircraft Services, Inc.
lnterjet (Aquila, Inc.) -JSF Aviation Services I 0 I 0 0 0 0 0 0 0 I 0 Keith Products, Inc. . Lennox International, Inc. I 0 Martinaire, Inc. 􀁐􀁯􀁴􀁥􀁮􀁾􀁩􀁡􀁬􀀠􀁾􀁩􀀺􀁬􀁉􀁬􀁁􀁴􀁩􀁩􀁲􀁩􀁴􀁓􀀶􀁰􀁦􀁾�
�􀁾􀁩􀀢􀀧􀀮􀀺􀀺􀁅􀀧􀁅􀀠i':;.. 􀁩􀀺􀀡􀁩􀁬􀀺􀀺􀀺􀁈􀁦􀁧􀀺􀁲􀀺􀀺􀁓􀁬􀁴􀁾􀀺􀀤􀁾􀁾􀂢􀀬􀁉􀁬􀀡􀁬􀁩􀀧􀁊􀁾􀁾􀀤􀁴􀁴􀁍􀁾􀁬􀁩􀁩􀁩􀁾􀁾􀁭􀁾􀁦􀁬􀁦􀀮􀀮􀀡􀀡􀁩􀁩􀀠Aircraft maintenance performed inside
hangar Chemical storage inside hangar. WaSte oil stored in I : Follow vehicle and equipment washing BMPs shed with numerous empty drums. Aircraft washing performed outside. Aircraft
maintenance performed inside hangar. Aircraft washing inside hangar. Chemical storage inside hangar I : I : Equipment degreasing/washing (Safety Kleen) Equipment maintenance Equipment
storage Follow chemical/petroleum container storage BMPs 0 Follow vehicle and equipment maintenance BMPs 0 Follow vehicle and equipment washing BMPs 0 Follow chemical/petroleum container
storage BMPs 0 Properly dispose offloor wash down water. Floor wash down 0 Vehicle maintenance • Aircraft 􀀭􀀭􀁾􀀢􀀠----0 Follow vehicle and equipment maintenance 0 Follow vehicle and
equipment washing BMPs 0 Follow chemical/petroleum container storage BMPs 0 Follow vehicle and equipment washing BMPs 0 Follow chemical/petroleum container storage BMPs 0 Work with AATI
and EUA to characterize and dispose of urunarked drum I • Follow chemical/petroleum container storage BMPs 0 Aircraft maintenance performed inside hangar.I • Chemical stomge inside hangar
• Aircraft washing outside 0 Aircraft rental 0 Aircraft washing outdoors Aircraft storage 0 Chemical storage -small quantities indoors 0 Unmarkedd Aircraft maintenance \;:)UUIo<U.U(UlI
• • ... _ ..11 .............􀀺􀀮􀁾........􀁾􀀠..l ....t ....... : ... ..4 .... __Chemical sto--• Manufacturing • indoors.I • Chemical storage -process tank and chemical drums JOrs. 0
Aircraft maintenance performed .u.x....... 􀁾􀀢􀀢􀀢􀀧􀁯􀁡􀁯􀀠 0 Aircraft washing performed inside hangar Aircraft storage 0 Automobile storage I : I : Follow chemical/petroleum container
storage ilMPs Follow liquid stornge in aboveground tanks BMPs • Follow vehicle and equipment maintenance BMPs 0 Follow vehicle and equipment washing BMPs • Follow chemical/petroleum
container storage BMPs • Waste fuel and oil 0 Aircraft maintenance performed inside hangar • Follow vehicle • Follow vehicle and equipment washing BMPsAircraft washing perfonned inside
hangarI • 􀀨􀀧􀁾􀁲􀁡􀁮􀀠􀁨􀁾􀁮􀁲􀁬􀀱􀁩􀁮􀁀􀀧􀀠•• 
TABLE 2 POTENTIAL POLLUTANT SOURCES AND SITE-SPECIFIC BEST MANAGEMENT PRACTICES 􀁾􀁾􀀭􀀭􀀭􀀭􀀭􀀽􀁔􀁥􀁮􀁡􀁮􀁴􀀠1--Potential 􀁐􀁑􀁬􀁉􀁩􀀮􀁬􀁴􀁜􀁩􀁩􀁩􀁾􀀺􀁓􀁢􀁰􀁦􀁦􀁬􀁾􀁾􀀧􀀠Y:T:iZ> • Equipment
maintenance inside shop Martinaire, Inc. (cont.) I • Chemicals stored inside hangar • Follow vehicle and equipment washing BMPs • • container • Aircmfi fueling • Follow fueling station
BMPs • Fuel stornge -one 4,000 gal unleaded and two 12,000 • Follow chemical/petroleum container stornge BMPs gal aviation gas tanks in fuel farm 114, one 12,000 and • Excavate and dispose
of stained soils. one 17,000 Jet Atanks in fuel farm III. Sump fuels with • Place blocks behind fuel truck parking area to properlyMercury Air Center secondary containment. Fuel trucks
park next to storm position trucks. drnins. • Pasition spill response equipment near fuel truck • Soil staining behind fuel truck parking area. parking area. • Aircrnft • I'ollow vehicle
and equipment maintenance BMPs• Aircraft maintenance conducted inside hangar. • Follow fueling station BMPs• Aircrafl washing performed inside hangar. • Follow vehicle and equipment
washing BMPs• Fuel stornge -one 2,000 gal unleaded gas, two 12,000 • Follow chemical/petroleum container stornge BMPsMillennium Jet Center. L.L.C. gal aviation gas and two 12,000 gal
Jet A USTs in Fuel • Place blocks berung fuel truck parking area to preventfarm Ill. Sump fuel in drum within overpack. backing trucks into creek.• Aircmft fueling • Position spill response
equipment near fuel truckChemical stornge inside on secondary containment• area. • Aircraft fueling • Fuel trucks parked ne.'<1. to creek. • Fuel storage -one 5,000 and one 12,000 gal
aviation gas and three 12,000 gal Jet A USTs in Fuel Farm 2. Sump fuel in exposed drum. • Follow vehiCle and equipment maintenance BMPs• Aircmfi maintenance conducted inside hangar.
• Follow fueling station BMPs• Chemical storage outside, some inside containment • Follow vehicle and equipment washing BMPsMillion Air some without. • Follow chemical/petroleum container
container storage BMPs• Equipment degreasinglwashing using Safety Kleen parts washer. • Equipment maintenance conducted inside shop. • Equipment storage Aircmfi maintenance performed
inside hangar. • Follow vehicle and equipment maintenance BMPs • Batteries stored on floor • Follow vehicle and equipment washing BMPsMonarch Air • Aircmfi washing performed outdoors.
• Follow chemicaVpetroleum container stornge BMPs • Chemical 􀁳􀁴􀁯􀁲􀁡􀁾􀁥􀀠inside hanmon dollies. \. Follow vehicle and equipment maintenance AireIV 􀁾􀁾􀁟􀀠• • 
I : I : Aircraft maintenance performed inside hangar, I : Fol1ow vehicle and equipment maintenanceNorth Texas Aircraft Services, Chemical storage inside with secondary containment. Fol1ow
chemicalJpetroleum container storage BMPsInc, • EQuiement maintenance conducted indoors • Aircraft maintenance conducted inside hangar, • Aircraft painting/stripping • paint booth inside
hangar Ai rcraft washing conducted outside,Omnillight Helicopters, Inc, I • • Chemical storage outdoors -covered with secondary containment • Fuel storalle -500 !ll!I in double walled
AS-Pizza Hut (Carmel Property Management) \: • Pratt & Whitney Engine Services, Inc, • • RSP Management Services, Inc, I • • Soil staining in alley along building Aircraft fueling• •
Aircraft storage Fuel storage -two 12,O()() gal aviation gas USTs in fuel• farm #3 and two 12,000 gal Jet AUSTs in fuel farm #6. Partnership R, Stem FBO Limited Sump fuel in drum inside
overpack. Unmarked drums inside hangar near floor drain• Floor drain connected to storm sewer.• • Drums and runts from Aircraft maintenance conducted inside hangar.Sierra Mike, Inc,
I' Used 'oil, solvents, soaps stored inside.• Aircraft maintenance conducted inside hangar.• Skytech Aviation, Inc. I • Equipment maintenance conducted inside hangar. • Equipment storage
---.--. Aircraft maintenance conducted inside hangar, • Follow vehicle and equipment maintenance BMPs Small quantities ofoil, thinner and soap kept indoors, • Follow ChemicaVpetroleum
container storage BMPs Aircraft stora e 􀀭􀀭􀁾􀀢􀀭􀀭􀀭􀀭• Follow vehicle and equipment maintenance BMPsAircraft maintenance conducted inside hangar, • Follow chemicaVpetroleum container
storage BMPsI : Chemical storage inside on secondal)' containment • Properly dispose of floor wash down water,Floor wash down Aircraft storage • Fol1ow vehicle and equipment maintenanceAircraft
maintenance conducted inside hangar • Follow chemicaVpetroleum container storage BMPsChemical storage inside hangar • Excavate and remove soil stains • Fol1ow vehicle and equipment maintenance
BMPs • Follow vehicle and equipment washing BMPs • Follow chemicaVpetroleum container storage BMPs • Periodically clean and properly dispose of residue in paint booth, • Follow fueling
station BMPs • Plug floor drain or reroute to sanitary sewer. • Follow chemicaVpetroleum container storage BMPs • Work with AATI to remove drumsfpaints from previous tenant. • Follow
vehicle and equipment maintenance BMPs • Follow chemicaVpetroleum container storage BMPs • Follow • Follow chemicaVpetroleum container storage BMPs • Follow liquid storage in above ground
tanks BMPs 
• Chemical storage in drums inside. One 250 gal waste • Follow vehicle and equipment maintenance BMPs Skytech Aviation, Inc. (conI.) oil tank in outside ASTto he removed soon • Follow
chemical/petroleum container storage BMPs • Floor wash down • Follow liquid storage in above ground tanks BMPs • Vehicle maintenance conducted inside han Vehicle maintenance conducted
inside • Follow vehicle and equipment maintenance BMPs.• Pesticide!Herbicide Usage • Follow fueling station BMPs.• Fuel storage -one 10,000 and one 6,000 gal gasoline and • Follow vehicle
and equipment washing BMPs Town of Addison I • one 1,000 gal waste oil USTs • Follow chemical/petroleum container storage BMPs Chemical storage inside • Follow manufacturer's recommendations
when applying• • Vehicle washing conducted outside. 􀁰􀁥􀁳􀁴􀁩􀁣􀁩􀁤􀁾􀁥􀁲􀁢􀁩􀁣􀁩􀁤􀁥􀁳􀀮􀀠• Airera1\ maintenance conducted inside hangar. • Equipment maintenance conducted inside.
• Follow vehicle and equipment maintenance BMPs Viper Aerospace Corporation I : Equipment storage • Follow chemical/petroleum container storage BMPs (Cragin 4) Chemical storage some
stored indoors, used oil and • Properly dispose of floor wash down water. used oil IiIters stored in outside drums. • 􀀭􀁾􀀠
Addisoo Airport of Texas,Inc. Air-O Specialist. Jet Charter, loc. Cavanaugh flight Museum Cherry-Air, Inc. DfW Aero Mechanix, Inc. Bldg. 12 Drum Materials are stored ioside hangar but
the hangar floods mU\Vl VII L,JV gal tslog. IIAST Iduring intense rainfall events Wild... Oil ,c;n anI Rlc1a l' 􀁁􀀮􀁾􀁔􀀠exposing materials to Waste Oil 55g81 Bldg. 38 Drum Waste Oil
IIOgBI Bldg. 44 Drums HTP-1l50 185 gal Outside Bldg. 63 Drums stormwater. CDM report noted that a waste oil drum stored outside. It has been moved in,gide the hangar. Oil drums are stored
outdoors in safety drums. The remaining drums are exposed with secondary containment. Jet stored outdoors at fuel farm in overpacks. Drums outside building are exposed without secondary
Drums exposed without secondary containment. 
EXPOSED MATERIALS IDENTIFIED DURING Ffi'ALl 􀁊􀁾􀁬􀀠􀁉􀁾􀀠􀀴􀁦􀀮􀀮􀁾􀁖􀁖􀁖􀀠jI:!;<l1 j,'1"I1;,;1 'IlUII 'IT 1 􀁖􀁾􀁊􀀮􀀠Unleaded gas 2000 gal Fuel farm #1 UST Aviation gas 24000 gal
Fuel farm #1 UST 24000 gal Fuel farm #1 __ __ UST E.UA Air Support Keith Products, Inc. Mercury Air Center Fuel in USTs. Drums outdoors in overpack. Tank and drum exposed without secondary
containment. Fuel in USTs. Drums stored outside in overpacks. Millenium Jet Center, Fuel stored in USTs. Drum L.L.C. (A V Group) ____ Jet A outdoors in overpack. Million Air Fuel in
USTs. Some drums covered inside secondary containment. Other drums exposed without secondary containment. 
TABLE 3 SUM1'vIARY OF EXPOSED MATERIALS IDENTIFIED DURING FACILITY INSPECTIONS 􀁨􀀧􀀻􀀻􀁪􀁾􀁾􀁪􀀻􀁩􀁪􀀺􀀧􀀠􀂷􀂷􀂷􀁾􀁴􀂷􀂷􀂷.,' ... I _ " ..􀂷􀁾􀀸􀁩􀀨􀀻􀁘􀁾􀁤􀁪􀀻􀁧􀀠.'reliant Million
Air (conL) Sump fuel 55 gal Fuel farm #2 Drum V'lI1';)\!'W VIi J.J1 LI,IUO> O 'fl' h H I' Industrial cleaner Bucket mm 19 t e lcopters, Inc, R. Stem FBO Limited Partnership Skylech Aviation,
Inc Town ofAddison Aerospace Sump fuel Waste oil 55 gal Fuel farm #3 Drum Fuel in covered inside secondary contairunenL Other drums exposed without secondary Jet A is • double-walled
AST, Drums are covered on secondary contairunenl. outdoors inside overpacks, Urunarked drum is stored inside near floor drain to AST is stored outdoors without secondary250 gal Bldg.5A
AST Fuel stored in USTs, exposed without containment 
APPENDIX 
Page 1 of 6 Facility: _______ Inspector: ______________ Inspection Date: Facility Name: Facility Street Address: Mailing Address: Corporate Address:____________________________ SIC Codes:
Contact Name: Phone Number: Emergency Contact: Phone Number: ___________ Title: __________ Title: ____________ Type ofFacility: Operating Schedule: Does the facility conduct deicing?

Page 20f 6 Facility: _______ ' . . .' "·····,·:;····:·;:m MATERIAL 􀁉􀁎􀁖􀁅􀁎􀁴􀁑􀁾􀁘􀀮􀀠...•••...••,.... .'........ . .' 􀀢􀀢􀀧􀀺􀀬􀀺􀁾􀀺􀀮􀀠􀁾􀀠 .......:... ..:... .:,.... .,.,. 􀁾􀁣􀀠􀁾..
Instructions: List all materials used stored, or produced onsite. Assess and evaluate these materials for their potential to contribute pollutants to storm water runoff. Also complete
Worksheet 3A if the malerial has been exposed during the last 3 years. Quantity Past Signiftcant (units) Spill or Ltak .' .." d . Likelihood ofliontad wilh stonnwat.,.. Iryes demibo
. 'Malena1 Purposett.ocatlOn Used Product'd Stored Ql.lanlllly ,",)(pOSe an Last 3 Years, reason.' Yes No . . L.... ...... _ ___. __.... _. __...... _._ ....... _ 
Page 3 of 6 Facility: _______ :'";-'":'U:;:" MATEitlALtNVENTORY" .-.. 􀀧􀀻􀀺􀀻􀁾􀀡􀀧􀀠::; 􀁾􀀺􀀧􀀺􀀠. .., Instructions: Based on your materia1 􀁩􀁴􀁬􀁶􀁥􀁮􀁴􀁯􀁲􀁹􀁾􀀠describe the significant
materials that were exposed to storm water during the past three years aodlor are currently exposed. For the definition of-significant materia1s· sec page S ofthis summary Description
ofExposed Significant Material . Period of Exposure Quantity Exposed (units) Location (ns indicated on the site map) Method ofStorage or Disposal (e.g. pile drum, tank) Description afMaleial
Management Practice (e.g., pile covered, drum sealed) 
Page 4 of 6 Facility: _______ INSPECI'ION CHECKLIST Check Applicable Operations Potential Exposure 10 Stormwater Yes No 0 Loading operations o 0 0 Unloading operations o 0 0 Outdoor
processing o 0 0 DuslIparticulate generating process o 0 0 Onsite waste disposal o 0 0 Onsi!e waste storage o 0 0 Fueling stations o 0 o Vehicle and equipment maintenance andlor cleaning
area o o Check any observed: o Corroded drums or drums without plugs or covers o Drums not labeled or improperly labeled o Corroded or damaged tanks. tank supports. or tank drain valves
o Tom bags or bags exposed to rain water o Corroded or leaking pipes o Leaking or improperly closed valves and valve fittings o Leaking pumps andlor hose co!U1ections o Broken or cracked
dikes. walls or othcr physical barriers designed to prevent storm water from reaching stored materials o Windblown dry chemicals o Improperly maintained or overloaded dry chemical conveying
systems o Signs ofpoor housekeeping (cluttered walkways. unswept floors. uncovered material. etc.) o Spots. pools. puddles or other traces ofoil, grease. or other chemicals on the ground
o Discoloration, residue. or corrosion on roof or around work area vent pipes or drains o Areas where absorbent material is regularly used o Open containers, stacked drums, shelving
too small, etc. to indicate poor storage procedures 
---Page 5 of 6 Facility: _______ INSPECl'ION CHECKLIST (cont) List any non-stonn water discharges into stonn water collection system: NPDES pennits for above discharges: ___ Yes No Ifyes,
list Pennit Nwnbers: 
Page 60f 6 Facility: _______ INSPECfION NOTES Chemical Storage Fueling Storage: . Maintenance Areas: Washing Areas: Outdoor Processing: Other: " 
________________________ __OATE I JOB NO.b"-;z.L/-D I ATTENTION RE: MJl5Pm .Ll 􀁾􀀱􀁔􀀱􀁩􀁾􀁾􀁩􀁩􀁩􀀡􀀡􀀡􀁩􀁩􀁟􀁾􀀡􀀡􀀡􀀡􀀡􀂮􀀠Public Works I Engineering 16801 Westgrove • P.O. Box 9010 Addison, Texas 75001·9010
Telephone: (972) 450·2871 • Fax; (9721450·2837 I GENTLEMAN: WE ARE SENDING YOU t9(Attached o Under separate cover via _____the following items: o Shop Drawings o Copy of letter 0 Prints
o Change order o Plans 0 Samples 0 Specifications 0 ________________________ COPIES DATE NO. DESCRIPTION J 3-/tj-()/j.p-/f.pr I W/<c.r ifi-􀀮􀀮􀁳􀀻􀁍􀁾􀁾􀀠A7rPtJrf-Storlrl/J1o :/:;'".
#Ilalr.rn t/JrJl,ilrrfrih /1/1Y1 Hfpcn--j...:MdJ J?.espP11f:e.. PIt'lY1f, f-ItMr'f-ScdI ffevM-h&1 r, -L IU /;'1 . I f, 􀁾􀀢􀀧􀁥􀀴􀁓􀁌􀁩􀁹􀀧􀀬􀀮􀀺􀀾􀁳􀀠{JloYl I , I THESE ARE TRANSMITTED
as checked below: o For approval 0 Approved as submitted o Resubmit ____copies for approval PiFor your use 0 Approved as noted o Submit copies for distribution o As requested 0 Returned
for corrections o Return corrected prints o For review and cornrnent 0 o FOR BIDS DUE __________19__ __ o PRINTS RETURNED AFTER LOAN TO US COPY TO ---"=q<ii-LJ-"---=.L..L+_-;-________
SIGNED: --f--+------------If enclosures are not as noted, please notify􀁾􀀠 I I 
􀁖􀁃􀁌􀁦􀀢􀁣􀁖􀁎􀁾􀀠􀁓􀁾F1:JL 􀁃􀁏􀁰􀀧􀀱􀀰􀁾􀀠􀁾􀀿􀁐􀁐􀁾􀀠􀁾􀁴􀁬􀁴􀀠(e:S'PM-x... 􀁾􀁴􀁴􀀣􀀭􀀮􀀠􀁾􀁬􀀼􀀮􀁃􀁕􀁣􀀠CfJ.1t rAJ( q􀁵􀀮􀀮􀁌􀁾<;. I 􀁾􀀠􀁾"'-"-.:X){ -to 􀁾􀁏􀀢􀀧􀀭􀀮􀁊􀀠􀁾􀀠􀁾􀁬􀁊􀀮􀀮􀁫􀀮􀁣􀁜
􀀠. 􀁾􀀾􀀬J:xue...-' . I · ....-." .. 
EA Engineering. Science. 􀁾􀁮􀁤􀀠Technology 1420 Valwood Parkway. Suite 170 Carrollton, lX 75Oll6 Telephone: 972-484-1420 M!X: 972-2fl/-7tJJJ Spill ReSponse Plan (SRP) Addison Municipal
Airport Addison, Texas Prepared For: Addison Municipal Airport 4545 Claire Chennault Addison, Texas 75248 Prepared By: EA Engineering, Science, and Technology 1420 ValwoodParkway Carrolton.
TX 75006 August 1998 'J 
August 1998 ADDISON MUNICIPAL AIRPORT SRPPLAN CERTIFICATION Designated Person Responsible for Spill Response Prevention Each tenant conducting operations at the airport involving fuel,
oil, or chemicals will designate one person who is thoroughly familiar with this SRP and its requirements. This SRP has been prepared in accordance with federal regulations contained
in 40 CFR 109 (Criteria/or State. Local and Regional Oil Removal Contingency Plans) and 40 CFR 112, Appendix E (Oil Pollution Prevention -Determination and Evaluation ofRequired Response
Plan Resources/or Facility Response Plans). Addison Municipal AilllOrt Management Approval Full approval is extended by management at a level with authority to commit the necessary resources
for oil spill prevention and countermeasures. i Signature Date 􀁱􀀺􀀾􀁾-,4':} T /Title Professional Engineer Certification Date Registration Number State 'I Addison Municipal Airport
Spill Response Plan i 
Addison Municipal Airport Spill Response Plan Site Information Owner/Operator ofthe Facility: Town of Addison Facility Name: Addison Municipal Airport Facility Address: 4505 Claire Chennault
Addison, TX 75248 Facility Phone Number: (972) 248-7733 Latitude: 3ko 58' 59" Longitude: 96" 50' 82" SIC Code: 4581 Largest Oil Storage Tank Capacity: 17,000 Gallons (Underground), Jet
A Fuel Maximum Oil Storage Capacity: Approximately 308,000 Gallons Number ofOil Storage Tanks: 34 Worst Case Discharge Amount: 4,500 Gallons Facility Distance to Navigable Waters: The
nearest river or creek is approximately 2,000 feet to the east of the airport . • " Addison MUllicipal Airport Spill Response Plan ii 
Augusl1998 CONTENTS CER11FICATION ...........................................................................................................................i SrrE INFORMATION........................
.......................................................................................... ii CONTENTS ............................................. : ................................................
................................... ill IJST OF FIGURES ........................................................................................................................v IJST
OF TABLES .........................................................................................................................v \ 1. OVERVIEW....u ...... 􀁾􀁕􀁈.......u ••• u ••u
................u ..........u • ................nu•••u ............u •••u .......... 1-1 1.1 Facility 􀁉􀁮􀁦􀁯􀁲􀁭􀁡􀁴􀁩􀁯􀁮􀁾..............u ............."'n....u •••􀁵􀁾••••*.u,u,.u••••
u ...........u .....u •• 􀁾••••• u. 1-1 1.2 Qualified Individual ........................................................................................... 1-2 1.3 Environmental Setting
........................................................................................ 1-2 2. EMERGENCY RESPONSE CAPABlllTIES ..............................................................
2-1 2.1 Emergency Notification Phone list ................................................................... 2-1 2.2 Response Equipment ..............................................................
............................ 2-2 2.3 Response Personnel ............................................................................................ 2-3 2.4 Evacuation Plan ..........................
........................................................................ 2-3 2.5 Responsibilities ..................................................................................................
2-4 3. HAZARD EVALUATION ............................................................................................ 3-3-1 3.1 Hazard Identification .................................................
......................................... 3-1 3.2 Vulnerability Analysis ........................................................................................ 3-1 3.3 Oil Operations
.................................................................................................... 3-3 3.4 Oil Spill History ........................................................................
......................... 3-4 3.5 Chemical Operations .......................................................................................... 3-6 4. RESPONSE PLANNING LEVELS ......................
......................................................... 4·1 4.1 Small and Medium Discharges .......................................................................... 4-1 4.2 Worst
Case Discharge .................... : ................................................................... 4-1 5. DISCHARGE DETECTION SySTEMS ..........................................................
............. 5-1 Addison Municipal Airport Spill Response Plan iii 
August 1998 CONTENTS (continued) 6. PLAN IMPLEMENTATION................... : ..................................................................... 6-1 6.1 Response Action Implementation
...................................................................... 6-1 6.1.1 Small Spill Scenarlo ...............................................................................
6-3 6.1.2 Medium Spill Scenarlo ........................................................................... 6-3 6.1.3 Worst Case Scenario .............................................................
................. 6-3 6.2 Drainage Planning .............................................................................................. 6-4 6.2.1 Total Area........ , .............................
......................................................... 6-4 6.2.2 Fuel Farm ......... : ..................................................................................... 6-5 7.
SELF-INSPECTION...................................................................................................... 7-1 7.1 Facility Self-Inspection ................................................
...................................... 7-1 7.1.1 UST Inspections ..................................................................................... 7-1 7.1.2 AST and Drum Inspections
.................................................................... 7-1 7.1.3 Response Equipment Inspections ........................................................... 7-2 7.1.4 Secondary
Containment Inspections ...................................................... 7-2 7.2 Addison MuniCipal Airport Inspection ...............................................................
7-2 8. SECURITY SYSTEMS ................................................................................................. 8-1 APPENDIX A: Spill Prevention Control and Countermeasure
Plan APPENDIXB: Spill Prevention Checklist APPENDIXC: Spill Incident Report " Addison MunicipalAirport Spill Response Plan iv 
August 1998 LIST OF FIGURES Number 1-1 Site Plan 3-1 Site Map of Fuel Farm 6-1 Site Plan Showing Drainage Boundaries 6-2 Site Map of Fuel Farm Showing Drainage LIST OF TABLES 3-1 Bulk
Oil Storage 3-2 Spill Response Locations 3-3 Bulk Chemical Storage Addison Municipal Airport Spill Response Plan V 
August 1998 1. OVERVIEW The objective of"this Spill Response Plan (SRP) is to determine the resources needed and actions to be taken in the event of an oil, fuel, or chemical spill at
the Addison Municipal Airport, Dallas, Texas. This SRP has been prepared in accordance with federal regulations 40 CFR 109 (Criteria for State, Local and Regional Oil Removal Contingency
Plans) and 40 CPR 112, Appendix E (Oil Poilution Prevention -Determination and Evaluation ofRequired Response Plan Resources for Facility Response Plans). This SRP also includes a Spill
Prevention Control and Countermeasures (SPCC) Plan in ApPendix A, which describes the procedures to prevent, control and/or mitigate releases ofoil and other petroleum substances to
the environment from the fuel farm area of the airport. The management authority for the purposes ofthis SRP is the manager of each UST operator and or airport tenant conducting operations
involving the use of oil, fuel, or chemicals. This plan will be implemented when signed by the the management authority. The federal regulations contained in 40 CPR 109 and 40 CFR 112
are provided to assist private concerns along with State, local, and regional agencies in the development of oil pollution prevention and oil removal contingency plans. The guidelines
establish minimum criteria for the development and implementation of contingency plans by State and local governments in consultation with private interests to insure timely, efficient,
coordinated and effective action to minimize damage resulting from oil and chemical discharges. The SRP was prepared in accordance with good engineering practices, and addresses the
oil removal contingency plan criteria outlined in 40 CFR 109 and 40 CFR 112. The SRP will be reviewed at least every three years and updated to reflect changes in the airport itself
and activities conducted at the airport. 1.1 FACILITY INFORMATION Facility Name: Addison Municipal Airport Location: Addison (Dallas County), Texas Latitude: 32° 58' 59" Longitude: 96°
50' 82" Facility Owner/Operator: Town of Addison Total OiIlFuel Storage Capacity: 308,000 gallons Addison Municipal Airport Spill Response Plan 1-1 
August 1998 1.2 QUALIFIED INDIVIDUAL Each UST opemtor and lor allport tenant conducting opemtions involving the use of oil, fuel, or chemicals must have a designated qualified individual
that is responsible for oil and chemical spill prevention. and implementation of the SRP. This individual is also responsible for the implementation of the SPCC plan ifhe is the operator
of USTs located in the allport fuel farm. The qualified individual is responsible for.reviewing the SRP, and ensuring that the resources needed to cany out the plan are available, that
personnel are appropriately tmined to cany out the plan, and that proper record keeping is maintained according to the requirements of this plan. A complete copy of this SRP will be
maintained by the qualified individual at all times and will be available for review by regulatory agencies during normal working hours. 1.3 ENVIRONMENTAL SE'ITING Addison Municipal
Airport is located twelve miles north ofdowntown Dallas. The allport is one of the busiest general aviation aiIports in the country, averaging over 160,000 takeoffs and landings per
year on a single runway. The airport is aligned along a north/south transect, paralleling Addison Road to the east and Midway Road to the west. The total area of the allport is approximately
365 acres. of which approximately sixty percent is covered by impervious surfaces (either buildings or pavement). The site consists ofexpansive paved surfaces (mmps. taxiways, runways,
and parking lots). gravel-covered areas, grass-covered areas, dminage channels. and permanent and tempomry structures. A site map showing the overall aiIport layout and the locations
of the tenants are shown on Figure 1. The allport lies in the Blackland Prairie physiographic province. A flat to gently undulating surface that slopes gently to the east characterizes
the Blackland Pmirie. The topographic gradient at Addison Airport is approximately thirty feet in relative elevation difference. The highest area is located centrally on the west side
of the aiIport, west of Rnnway 33-15, at approximately 650 feet above mean sea level (msl). The lowest area is located along a dminage feature that runs northeast-southwest, north of
Runway 33-15, at approximately 620 feet msl. The Woodbine formation is recognized as the first true aquifer beneath the aiIport and is classified as a minor aquifer system in Dallas
County. The regioual flow within the confmed aquifer is typically to the southeast. Because of the environmental setting of Addison Municipal Airport and the spill containment . measures
in place, it would require a very large spill to present a serious environmental risk. The reason for this is the spill pathway leading from the largest area of oil stomge, the tank
farm, does not lead to surface water or sensitive environments. mstead, a spill would be contained underground in the southeasteru area of the airport, and would be contained within
the allport. A prime objective, in addition to personnel protection. is to keep any release of oil, fuel, or chemicals from reaching any of the surface water on or near Addison Municipal
Airport. " Addison Municipal Airport Spill Response Plan 1-2 
2 􀁅􀁍􀁅􀁒􀁇􀁅􀁎􀁃􀁙􀁾􀁐􀁏􀁎􀁓􀁅􀁃􀁁􀁐􀁁􀁂􀁾􀀠2.1 REQUIRED NOTIFICATIONS PHONE LIST The following table provides telephone numbers to be called in an emergency: Agency Telephone Number
Jurisdiction Addison Fire Department Pager Non-Emergency Number < < 911 (972) 249-2040 (972) 249-1111 Will be notified in the event ofa fire or ifthe spill is greater than 5 gallons
in volume and has the potential to migrate off site, enter a storm sewer, or is located in an area not covered by concrete or asphalt. Addison Police Department Pager 􀁎􀁯􀁮􀀭􀁅􀁭􀁥􀁲􀁾􀁥􀁮􀁣􀁶Number
<. 911 (972) 249-2040 (972) 249-1111 Will be notified at the discretion of the Qualified Individual. Addison Municipal Airport Management (214) 322-8167 Will be notified in the event
of any oil, fuel. or chemical spill. fire or if the spill has the potential to migrate off site, enter a storm sewer, or is located in an area not covered by concrete or asphalt. Control
Tower (972) 293-3725 Will be notified at the discretion of the Qualified Individual. National Response Center (800) 424-8802 Will be notified ifthe spill exceeds a reportable quantity.
Enviroumental Protection Agency, Region VI 24-hr reporting number Region VI Regional Response Team (214) 665-6595 (214) 665-2222 Will be notified ifthe spill exceeds a reportable quantity
(Reportable Quantity for EPA is 1,000 gal.) Texas Natural Resources Conservation Commission (817) 469-6750 Will be notified within 24 hours ifa spill is greater than 25 gallons in volume.
The spill incident report form is found in Appendix C ofthis report. This form is a guide to what information should be collected when notifying a regulatory agency of a spill event.
Spill notification should not be delayed by gathering all of the information on the checldist, although all ofthe information must be in the process of being collected from the time
spill notification occurs, and should be completed as soon as possible. Addison Municipal Airport Spill Response Plan 2-1 
2.2 RESPONSE EQUIPMENT IlEAVY EQUIPMENT Addison Municipal Airport maintains equipment that may be utilized during spill response situations or in the cleanup phase. A partial list of
equipment that may be utilized is listed below: Equipment Quantity Location Contact Dump Truck (10 yard) 1 Maintenance Shed Airport Director ofOperations and Maintenance Backhoe wlLoader
1 Maintenance Shed Airport Director of Operations and Maintenance Truck, Cargo (Y% Ton) 2 Maintenance Shed Airport Director ofOperations and Maintenance Addison Municipal Airport Spill
Response Plan 2-2 
OTHER EQUIPMENT Tenants conducting operations involving oil, fuel, or chemicals will store hydrocarbon and chemical absorbent booms, socks, and pads in sufficient quantity to contain
spills or prevent spills from entering storm water inlets or ditches. The materials stored will be of sufficient size to cover storm water inlets that might be threatened in the event
of a spill, or stop the spill in route to the storm water inlet. Each tenant conducting operations involving the use of oil, fuel, or chemicals will maintain the supplies for their own
use at their permanent facility location. The suppues will be kept in locations easily 􀁾􀁳􀁳􀁥􀁤by all personnel. Tenants conducting aircraft fueling operations from mobile fueling
tnicks will also maintain a supply ofhydrocarbon absorbent materials and I or pads for use in fueling trucks at all times. Hydrocarbon absorbent booms, socks, and pads will be stored
at the fuel farm area in sufficient quantity to contain or prevent fuel spills from entering storm water inlets. The materials stored will be ofsufficient size to cover storm, water
inlets that might be threatened in the event of a spill, or stop the spill in route to the storm water inlet. Spill containment materials will be stored in small fenced compounds located
in the common areas and will be available for use by all UST operators. The first compound is located, at the northern end ofFacility #2, and the second is located at the southern edge
of Facility #6 (Figure 2). As these materials are for use by all operators, the initial cost of these materials will be shared equally by the UST operators. The operators, at their cost,
will replenish any spill containment materials used in spill respon,se. 2.3 RESPONSE PERSONNEL Tenant personnel responsible for the spill will be the ftrst responders to oil, fuel, and
chemical spills. Ifthe spill is of a volume greater that 5 gallons in volume and has the potential to migrate off site, enter a storm sewer, or is located in an area not covered by concrete
or asphalt, Addison Fire Department personnel should be called as the initial responders. Addison Municipal Airport management should also be notifted. The Addison Police Department
and local medical agencies should be called if deemed necessary by the Qualifted Individual. 2.4 EVACUATION PLAN Evacuation Procedures • Evacuate non-essential personnel from the spill
area. • Notify the Addison Fire Department if appropriate. • Notify the Qualifted Individual. • Prevent traffic from entering spill area. • Control access to the spill site. Addison
Municipal Airpon Spill Response Plan 2-3 
August 1998 2.5 RESPONSmlL1TIES Tenant Personnel • Notify the Qualified Individual and appropriate people and departments (Section 6.1) • Determine the type ofsubstance and quantity
of spill. • Ifthe substance is in large quaptity, notify the Addison Fire Department and Addison Municipal Airport management. • Stop the leak ifpossible. • Construct a dam around the
spill using dry absorbent material or any other material (i.e. soil) available to preveQt the spill from impacting adjacent properties, storm sewer,etc. • Initiate evacuation, ifnecessary.
• Malntain an Incident Log to record details of spill incidents and submit to Addison Municipal Airport Management. Addison Municipal Airport Management • Respond to all spill events
reported at airport facilities. • Malntain an Incident Log to record details of all spill incidents at airport facilities. Addison Municipal Airport Spill Response Plan 2-4 
August 1998 3. HAZARD EVALUATION 3.1 HAZARD IDENTIFICATION The Addison Municipal Airport Fuel Farm is a bulk fuel storage facility utilized in airport fueling operations. The fuel farm
consists of29 underground storage tanks (USTs) in seven separate facilities. A total of seven UST operators store unleaded gasoline, aviation gasoline, and Jet A fuel in the USTs. A
remote fuel dispenser is located on a concrete tarmac approximately 300 ft north-northwest of the fuel farm area. Three USTs are also located at the Town of Addison service center located
on the airport property. Most tenants store fuels, oils, and chemicals onsite. These are stored in 55 gallon steel drums or smaller containers, or in small volume Above Ground Storage
Tanks (ASTs). Table 3-1 contains information on storage tanks (UST and AST) located at the Addison Airport. 3.2 VULNERABILITY ANALYSIS \ Fuel spilis from mobile sources could conceivably
occur at any location on airport property. Unleaded gasoline, aviation gasoline, and Jet A fuel are delivered to USTs in the airport fuel farm by transport trucks. The transfer of fuel
to the USTs could potentially impact the fuel farm area by a ruptured above ground fuel or dispenser line, fuel truck line or component. or by overfilling a fueling truck. Transport
trucks designed with compartment tanks, with the largest compartment size being approximately 4,500 gallons, could release up to 4,500 gallons in a catastrophic tank failure. A hose
failure on a transport truck could release fuel at approximately 200 gallons per minute or less to the gravel drive in the fuel farm. Aviation gasoline and Jet A fuel are transferred
from USTs in the fuel farm to fueling trucks, which transport the fuel to aircraft on airport property. Aircraft fueling could potentially release fuels due to spills and leaks that
happen during fuel delivery, spills cansed by topping off tanks. or by overfills or accidents involving the fuel truck or airplane. Some of the operators provide fuel for ground vehicles,
which has similar similar spill potential. Chemical spilis could also occur at any location on airport property. The largest container for chemicals being stored on airport property
is a 250 gallon AST, although most chemical storage is in 55 gallon steel drums. The largest conceivable spill from a single container could be up to 250 gallons, which could be to a
storm drain or impervious surface at tenant locations. " Addison Municipal Airport Spill Response Plan 3-1 
August 1998 B.U.A. Air Support Mercury Air Center Millennium Jet Center, L.L.C. (AV Million Air Omniflight R. Stem F.B.O. Limited Town of Addison Jet A 500 AST Bldg. 9 I Addison Municipal
Airpon Spill Response Plan 3-2 
· August 1998 3.3 OIL OPERATIONS Many tenant operations involve fueling or maintaining aircraft. Fuel and oil are stored in bulk at several locations located on airport property. The
locations of the bulk storage areas are below: Buildings Building 12 There are two 250 gallon ASTs located at the maintenance shop operated by Addison Municipal Airport maintenance personnel,
one containing motor oil and the other waste oil. The ASTs are stored inside the building and without secondary containment. Building 9 Omniflight Helicopters, Inc. stores Jet A fuel
in one 25() gallon AST. The AST is located outside and without secondary containment Building5A Skytech Aviation, Inc. stored waste oil in one 250 gallon AST. The AST is apparently empty
and is stored outside. Skytech indicated the AST will be removed from the facility and disposed of properly. Service Center There are three USTs located at the Town of Addison service
center, two gasoline tanks that are 10,000 and 6,000 gallons, and one 1,000 gallon waste oil tank. The USTs are used for fueling and maintenance of vehicles and equipment operated by
Town of Addison employees. Fire Department There are two USTs at the Town of Addison Central Fire Station located on airport property. One 2,000 gallon diesel UST and one 10,000 gallon
gasoline UST nsed for fueling and of vehicles and equipment operated by the fIre station. Fuel Farm The Addison Municipal Allport Fuel Farm is a bulk fuel storage facility utilized in
airport fueling operations. The fuel farm consists of 29 USTs in seven separate facilities. A total of seven UST operators store unleaded gasoline, aviation gasoline, and Jet A fuel
in the USTs. A remote fuel dispenser is located on a concrete tarmac approximately 300 ft north-northwest of the fuel farm area. The Addison Municipal Allport Fuel Farm is located in
the southeastern portion of the airport property, south of the intersection of Addison Road and Roscoc·Tnmer Street in Dallas, Texas. The northern most UST installation is located approximately
60 ft ft south of the intersection of Addison Road and Roscoe Tnmer Street, with the southern most UST installation being located approximately 700 ft south of the intersection (Figure
3-1). For the purposes of this SRP plan, the facilities will be identified as Facilities #1 -#7. Addison Municipal Airpon Spill Response Plan 3-3 
AugUSl1998 Facility #1 is located approximately 60 ft south of the intersection of Roscoe Turner Street and Addison Road at 4788 Roscoe Turner Street, Dallas, Texas, (Figure 2, Photo
1). The facility contains eleven USTs operated by three separate operators. Two of the eleven USTs are 1,000 gallon steel sump tanks that are not in use. Millennium Jet Center, L.L.C.
operates one 2,000 gallon unleaded gasoline tank, two 12,000 gallon aviation gasoline tanks, and two 12,000 gallon Jet A fuel tanks. Ari-Ben Aviator,lnc. operates two 12,000 gallon aviation
gasoline tanks. Mercury Air Center,lnc. operates one 12,000 gallon Jet A fuel tank and one 17,000 gallon Jet A fuel tank. A remote fuel dispenser located on a concrete tarmac approximately
300 ft north of the facility is connected by nnderground piping to the two 12,000 gallon aviation gasoline tanks operated by Millennium Jet Center, L.L.C. (Figure 3-1). Facility #2 is
located approximately 180 ft south ofthe intersection of Roscoe Turner Street and Addison Road at 15409 Addison Road, Dallas, Texas, (Figure 3-1). The facility consists of five USTs
operated by Million Air Dallas. The facility contains one 5,000 gallon aviation gasoline tank; one 12.000 gallon aviation gasoline tank; and three 12,000 gallon Jet A fuel tanks. Facility
#3 is located approximately 280 ft south of the intersection of Roscoe Turner Street and Addison Road at 15411 Addison Road, Dallas, Texas. (Figure 3-1). The facility consists of two
USTs operated by the R. Stem Limited Partnership. The facility contains two 12,000 gallon aviation gasoline tanks. Facility #4 is located approximately 460 ft south of the intersection
of Roscoe Turner Street and Addison Road at 15409 Addison Road, Dallas, Texas, (Figure 3-1). The facility consists of three USTs operated by Mercury Air Center, Inc. The facility contains
one 4,000 gallon unleaded gasoline tank and two 12,000 gallon aviation gasoline tanks. Facility #5 is located approximately 530 ft south of the intersection of Roscoe Tumer Street and
Addison Road at 15411 Addison Road, Dallas, Texas (Figure 3-1). The facility consists of six USTs operated by E.U.A. Air Support,lnc./Mission Air. The facility contains one 4,000 gallon
unleaded gasoline tank; two 12,000 gallon aviation gasoline tanks; and three 12,000 gallon Jet A fuel tanks. The USTs located in this facility are not currently in use and will require
upgrades to meet current EPA and TNRCC regulations prior to returning to service. Facility #6 is located approximately 590 ft south of the intersection of Roscoe Turner Street and Addison
Road at 15409 Addison Road, Dallas, Texas (Figure 3-1). The facility consists of two USTs operated by the R. Stern Limited Partnership. The facility contains two 12,000 gallon Jet A
fuel tanks. Facility #7 is located approximately 690 ft south of the intersection of Roscoe Turner Street and Addison Road at 15405 Addison Road, Dallas. Texas (Figure 3-1). The facility
consists of two USTs operated by Cherry Air. The facility contains two 12,000 gallon Jet A fuel tanks. 3.4 OIL SPILL mSTORY During a previous investigation of the airport, Camp, Dresser,
and McKee identified spills that had been reportedat the airport. These spills are summarized in Table 3-2. To date, no reportable quantity spills, as defined in 40 CFR, part 112 have occurred at any of the UST facilities in the Addison
Municipal Airport fuel fann. Addison Municipal Airport Spill Response Plan 3-4 
5 gallons ofwaste oil and grease -Addison Airport -intentionally dumped into Hangar. The discharger was drainage ditch. identified as Addison Air Center 2 311191 200 15600 Addison Road
(Main AATI underground storage tank was FuelFann) overfilled 3 155 gallon AvGas fuel spill-Fuel truck driver backed into 4 2J2J94 Paint related materials were dumped into dumpsters and
on land surface 5 211 Small fuel leak from helicopter Millionaire apron area crash. 6 40 gallon jet fuel spill-Employee Millionaire fuel farm 7 150 gallon fuel spill from landing Unknown
-near one end ofthe 8 1118/97 3 gallon Jet A fuel spill Unknown -somewhere on taxiway-runway. AA TI indicated that this accident occurred on the main runway across from the Collins 9
150 gallon fuel spill(Cherry fuel 10 Minor fuel leak from plane Main runway 11 11127197 Fuel spill from damaged wing on Av Group apron area crashed aircraft channel north Millionaire
FBO building Skyworks Aviation (located along the southern boundary of the 􀁾􀁴􀁥􀁲􀁮􀀠toll tunnel construction Addison Municipal Airport Spill Response Plan 3-5 
August 1998 3.5 CHEMICAL OPERATIONS Addison Allport of Bldg. 12 PennaBlack: AST250 AeroditeKeith Products, Inc. Outside Bldg. 57150 AST Building 12 There is a 250 gallon AST located
at the maintenance shop operated by Addison Airport maintenance personnel containing PennaBlack. The ASTs is stored inside the building and without secondary containment. Building 9
Keith Products, Inc. stores Aerodite Aluminum in one 150 gallon AST. The AST is located outside and without secondary contai oment. Other tenants store chemicals in quantities of 55
gallons or less. " Addison M unicipai Airpon Spill Response Plan 3-6 
August 1998 4. RESPONSE PLANNING LEVELS 4.1 SMALL AND MEDIUM DISCHARGES Small or medium discharges of oil could occur from any of the USTs, ASTs, drums or other small quantity containers
located at Addison Airport, and also from mobile sources, such as fuel transport trucks. Small discharges are assumed as spills less than 450 gallons (40 CFR, Part 112, Appendix E, Paragraph
3.1). Medium discharges are assumed as spills greater than 450 gallons and less than or equal to 4,500 gallons (40 CFR, Part 112, Appendix, Paragraph 4.1). There have been numerous small
discharges of oil at Addison Airport in the previous three years. Currently, there are 4 storage tanks that are equal to or less than 450 gallons in size (Tables 3-1, 3-2). All of the
USTs at the fuel farm are larger than 450 gallon in size (Table 3-1). The capacity of the USTs listed in this table"coincides with sizes greater than a medium spill, although a small
and medium spill could still occur from one of these tanks. Another possible scenario is the discharge of 4,500 gallons of oil from the rupture ofa fuel truck. This type ofspill could
potentially happen on or adjacent to any of the roadways located at the facility. The stormwater sewer drainage, or pipes or ditches could potentially be affected under this scenario.
4.2 WORST CASE DISCHARGE The worst case discharge volume at Addison Municipal Airport is a 4,500 gallon release of fuel from a fuel transport truck. Transport trucks could release up
to 4,500 gallons in a catastruphic tank failure. A hose failure on a transport truck could release fuel at approximately 200 gallons per minute or less to the gravel drive in the fuel
farm. Fueling trucks transporting fuel to aircraft on airport property have similar fuel carrying capacities, which could result in a discharge of similar volume in the event of an accident
or catastruphic tank failure. This type ofspill could potentially happen on or adjacent to any of the roadways located at the facility. The stormwater sewer drainage, or pipes, or ditches
could potentially be affected under this scenario. Addison Municipal Airpol1 " Spill Response Plan 4-1 
S. DISCHARGE DETECTION SYSTEMS Each facility's UST system in the fuel fann is equipped differently. USTs are provided with ball floats or flow restriction devices that will automatically
shut off or slow the flow into the tank when the fuel level reaches 90% of the tank capacity, or provided with an audible and visible alann to alert the person responsible for the fuel
delivery when the fuel level reaches 90% of the tank capacity. Ifan audible alann system is utilized, the tank is also equipped with a valve or other device designed to automatically
shut off the flow into the tank when the fuel level reaches 98% of the tank capacity. Fuel dispenseni are equipped with automatic shutoff nozzles to prevent overfilling of vehicles or
aircraft. Underground fuel lines are equipped with leak detection devices ifthey operate under pressure. USTs also are equipped with tight fill fittings and/or liquid tight sumps around
fill necks. Emergency shutoffs or electrical breakers that may be utilized to shut off pumps in an emergency for each facility are located in areas with easy access. The leak detection
systems at the Addison Airport fuel fann are in operation 24 hours a day. " Addison Municipal Arport Spill Response Pilln 5-1 
August 1998 6. PLAN IMPLEMENTATION 6.1 RESPONSE ACTION IMPLEMENTATION The execution ofthe SRP Plan is divided into three phases: Discovery and Initial Notification. Emergeucy Response,
and Post Emergency Cleanup and Restoration. 1. DISCOVERY AND INITIAL NOTIFICATION: This phase begins when a spill ofoil. fuel, or chemical is discovered and euds When operator responsible
for the spill notifies the appropriate people or departmeut Individuals discovering a spill should take the following actions (the order of actions will depend on the situation at the
scene): • Determine (without additional personal exposure) the substance that has been spilled. The facillty Maferia1 Safety Data Sheets (MSDS) should be used for this determination
ifother personnel on the scene are not familiar with the substance. • Notify the Qualified Individual. • Stop the spread of the spill ifthis is possible without risk of personal injury.
• Initiate evacuation, ifnecessary. • Restrict entry/warn people to stay out of spill area. • Restrict all sources of ignition when flammable substances are involved. The tenant responsible
for the spill should notify the following people or departments: • Qualified Individual (Tenant) • Airport Municipal Airport Management. • Addison Fire Department in the event ofa fue
or ifthe spill is greater than 5 gallons, has a potential ofmigrating off site, enters a stonn sewer, or is on an area not covered by asphalt or concrete pavement • Local spill contractor
ifneeded. • Tank draining contractor if needed. • Fuel Facility equipmeut repair contractor ifneeded. • Electrician ifneeded. • Teuant's Environmental Consultant. Addison Municipal Airport
Spill Response Plan 6-1 
Augusl1998 2. EMERGENCY RESPONSE: This phase begins when the operator's personnel at the facility determine an emergency response is required and ends when the spill has been brought
nnder control and danger to personnel and property has been minimized. In the event of an oil/fuel spill at the UST operator or tenant facilities, the operator's personnel at the facility
should take the following immediate response actions: • Stop the leak, ifpossible (Emergency shut-off switch, closing valves, etc.). • Call the Fire Department if appropriate. • Construct
a dam around the spill using dry absorbent material or any other material available to prevent the spill from impacting adjacent properties, storm sewer, etc. • Place plastic liners,
containment booms or pillows over any of the storm sewer inlets in the pathway of the release. • Prevent traffic from entering the spill area. • Control access to the spill site. • Ensure
that no ignition sources are present or allowed into the spill area. • Initiate cleanup and removal actions. • Call spill contractor and request vacuum truck to remove spilled product,
if necessaxy. Addison Municipal Airport Spill Response Plan 6-2 
August 1998 3. POST EMERGENCY CLEANUP AND RESTORATION: This phase begins when the area is safe for personnel to begin or continue containment and cleanup efforts. The time to complete
this phase may range from a few minutes to several days depending on the extent ofthe spill and the required site cleanup. The following actions should be taken in this phase: • Confme
the spill as close to the source as practical and ifat all possible prevent spills from entering a waterway or exiting airport property. The person(s) responsible for this task is the
Qualified Individual. • Initiate clean up and disposal actions. Contaminated media will be collected to he maximum extent possible and disposed ofin accordance with applicable enviroumental
regulations. The organization responsible for the spill will normally be responsible for these actions. • Ifoperator personnel carmot effectively perform a timely and thorough cleanup.
an outside contractor will be called. The operator's environmental consultant should also be contacted for the collection of any soil or groundwater samples needed to confIrm cleanup
ofthe spill. and to assist in the proper characterization and handling ofany wastes produced by cleanup activities. The list of available contractors should be updated armually. • Arrange
with the environmental consultant for proper disposal ofrecovered product and obtain permits. as required. • The operator responsible for the spill will notify the Texas Natural Resources
Conservation Commission ('INRCC) within twenty-four (24) hours ofthe spill incident as required ifthe spill is over 25 gallons in volume. 6.1.1 Small Spill Scenario A small discharge
is defined as any discharge volume less than 450 gallons. 6.1.2 Medium Spill Scenario A medium discharge is defined as any discharge volume between 450 or equal to or less than . 4,500
gallons in size. 6.1.3 .Worst Case Scenario " A facility owner or operator must identify sufficient response resources available. by contract or other approved means to respond to a
worst case discharge ofoil. At Addison Municipal Airport, the worst case plarming discharge is 4,500 gallons. Addison Municipal Airpon Spill Response Plan 6-3 
August 1998 6.2 DRAINAGE PLANNING The requirement for containment and drainage planning are different for each of the four drainage basins. The following sections discuss the required
containment and drainage planning for each ofthe drainage basins. 6.2.1 Total Area Surface water runoff from Addison Municipal Airport is collected in storm drains and ditches located
around the airport. The storm sewer system is owned and operated by the Town of Addison. Discharge from the airport storm sewers eventually drains into one of three creeks: Hutton Branch
in Carrollton, Rawhide Creek in Farmers Branch, or White Rock Creek in Dallas. The drainage areas on the airport, along with the airport inflows and outfalls are shown on attached Figure
2. N2!1!! The majority of the airport drains to the outfall located on the western side ofthe airport. Water from the grassy northern area, the eastern developed area north of Taxiway
U, the runway and taxiways north of Taxiway B, and the western developed area north ofTaxiway B ((off airport activities) all drain to this outfall. After leaving the airport property
this water runs into Hutton Branch approximately three miles west of the airport. This area receives offsite inflow from off the airport both on the north side of the airport and on
the northeast side. Approximately 49% of this drainage area is impervious. South Drainage from the southern part of the airport is collected in storm drains which discharge to surface
ditches located southeast and southwest of the runway. These surface ditches convey stormwater off of the airport property to the south. This drainage eventually ends up in Rawhide Creek
approximately 3,000 ft southwest of the airport. This area drains the south end of the runway, the tenants south of Airport Parkway (except for the Fire Department), and off airport
activities located west of Taxiway B. Approximately 54% of this drainage area is impervious. Bast Water from the eastern side ofthe airport between Taxiways B and U runs east via surface
drainage to Addison Road where it is collected in the storm drains and conveyed to White Rock Creek approximately 2,000 ft east ofthe airport. Approximately 84% of this drainage area
is impervious. West . A small area on the western side of the airport (Co-op Hangars A, B, and C) drains via surface drainage offsite where it is collected in the Addison storm sewer
system and conveyed to Rawhide Creek. Approximately 100% of this drainage area is impervious. Addison Municipal Airport Spill Response Plan 64 
August 1998 6.2.2 Fuel Farm The drainage area of the fuel farm is shown on the attached Figure 3. Surface drainage on the gravel drive west of Facilities #1, #2, and #3 is toward a shallow
drainage ditch located approximately 40 it west of the facilities at the farthest point. A six. it chain link fence and large concrete blocks border the eastern side of the drainage
ditch. The drainage ditch leads to a below ground concrete colvert, which travels southeast beneath the gravel driveway to another shallow drainage ditch. This ditch flows south, eventually
emptying to the Addison Road right of way and the storm sewer system. Surface drainage on the gravel drive east of Facility #1 is toward the boundary between Addison Airport property
and the Addison Road right of way. The eastern boundaries of Facilities #2 and #3 are located on the border of Addison Airport property and the Addison Road right of way. Drainage on
the eastern side of these facilities is toward the Addison Road right of way. Surface drainage on the gravel drive eaSt of Facilities #4, #5, and #6 is toward the boundary of Addison
Municipal Airport property and the Addison Road right of way. The gravel drive also drains to the south and enters the Addison Road right of way at the south approach to the fuel farm
area. Drainage on the western side of Facilities #4, #5, and #6 is toward the southwest to an inlet of a below ground concrete culvert, which drains to a shallow drainage ditch located
approximately 40 it west of Facility #7. Drainage on the eastern side of Facility #7 is to the east towards the Addison Road right of way. Drainage on the western side of Facility #7
is to the west toward the drainage ditch. The drainage ditch drains to the southwest portion of airport property, where it joins a main drainage channel leading to the Addison storm
sewer system. The driveway in the fuel farm does not have an impervious cover. This allows surface water to infiltrate the soil. No concrete curbs or other drainage controls are present
between the UST UST installations and gravel driveway with the Addison Road right of way, although a small ridge of soil in the right of way landscaping may act as a drainage control
feature. Figure 3 displays the drainage pattern for the fuel farm area. . Surface drainage from the remote aviation gasoline dispenser located north of Facility #1 (Figure 3) is toward
a shallow drainage ditch located approximately 100 it west-southwest at its nearest point. The tarmac surrounding the dispenser is constructed of concrete, which does not allow surface
water to inflltrate the soil. A grassy area on the edge of the tarmac controls the runoff of surface water and drainage, with a slight depression in the center of the grassy area directing
runoff to the drainage ditch. Figure 3 displays the drainage pattern for the tarmac surrounding the remote dispenser. Addison Municipal Airport Spill Response Plan 6-5 
Augusr1998 Drainage ditches located near the fuel farm area gather surface runoff, and direct runoff to either the storm sewer located in the Addison Road right of way, or to the storm
sewer system located in the Lindbergh Road right of way near the southem end of the airport. The storm sewer system in the Addison Road right of way drains to White" Rock Creek approximately
2,000 ft east of the airport. White Rock creek runs into White Rock Lake in Dallas, Texas. The drainage ditch gathering runoff from the tarmac surrounding the remote dispenser runs west
to a main drainage channel for the airport. The main drainage channel runs to the southem end of airport property where it enters the storm sewer system located in the Lindbergh Road
right of way. The storm sewer drains to Rawhide Creek located approximately 3,000 feet southwest of the airport. Addison Municipal Airpon Spill Response Plan 6-6 
August 1998 7. SELF-INSPECTION 7.1 FACILITY SELF-INSPECTION This SRP includes a spill prevention checklist and a spill incident report fonn (Appendices 2 and 3). Observations should
be recorded on a monthly basis and maintained for a period of at least three years. 7.1.1 UST Inspections Each UST operator's maintenance personnel shall conduct a preventive maintenance
inspection (PM!) on the UST facilities daily. Pumps, dispensers, piping, valves, and tanks shall be inspected for proper working order and leaks. This includes, among other things, the
visual inspection of all accessible piping and dispensing equipment in the UST systems. The personnel conducting the PM! will notify thek suPervisor about any problems identified in
order to make repairs to any equipment as soon as possible. 7.1.2 AST and Drum Inspections Tenant personnel will inspect equipment, operational systems, storage tanks, and storage drums
to ensure that they are maintained and working properly. Most ofthe tenants at the airport store chemicals. Qualified personnel who will inspect equipment and storage areas will notify
their supervisor about any problems identified in order to make repairs as soon as possible. Items to be checked shall include: Tanks and Drums drip marks discoloration leaked material
cracks localized dead vegetation ifstored on a soil surface Piping leaked material discoloration corrosion bowing ofpipe between supports leakage at valves or seals localized dead vegetation
if stored on a soil surface Addison Municipal Airport Spill Response Plan 7-1 
7.1.3 Response Supplies I Equipment Inspections Response supplies I equipment for oil and chemical spills shall be inventoried and inspected on at least a quarterly basis using the checklist
provided. The response equipment should be checked for accessibility, operational condition, last time used, and the present age and expected replacement date. Observations should be
recorded and records of the quarterly inspections shall be kept for three years. 7.1.4 Secondary Containment Inspections Secondary containment structures for ASTs and drums stored by
the tenants shall be inspected on at least a monthly basis for cracks, discoloration, presence of spilled or leaked material, corrosion. and valve condition. Observations should be recorded
and records of the inspections shall be kept for three years. 1.2 Addison Municipal Airport Inspections Addison Municipal Airport Personnel on a regular basis will conduct inspections
of UST facilities located on the airport property. In the event that deficiencies are noted, the qualified individual will be contacted about correcting the deficiencies, and both parties
will agree a time frame for correction of the deficiencies. Addison Municipal Airport Spill Response Plan 7-2 
August 1998 S. 􀁓􀁅􀁣􀁵􀁲􀁮􀁸􀁲􀁙􀁓􀁙􀁓􀁔􀁅􀁾􀀠A chain link security fence with locking gates encloses each UST facility at the fuel farm, where the majority of oil is stored at the
airport. Fuel dispensing equipment at each facility is located inside the security fences. All control panels associated with dispensing equipment are also located inside the security
fences, with additional locking on I off switches provided for additional security. Each facility is accessible for fuel dispensing 24 hours a day by authorized operator personnel. When
the facilities are not in use, the power to the dispensing equipment will he turned off, with all locking mechanisms locked in the off position and the gates on the security fence locked
shut. Ifemergency shutoff switches are not located on pump control panels, electrical breakers inside the electrical breaker panels may he used as an emergency shutoff. Breaker panels
for all facilities are located outside the security fences. A six foot chain link security fence surrounds the tarmac where the remote dispenser is located. The tarmac and dispenser
is accessible through an unmanned security gate with an automated security system. The emergency shutoff switch for the remote dispenser is located adjacent to the fueling building located
approximately 50 ft south of the dispenser. Facility lighting is sufficient for discovery of spills occurring during hours of darkness and to minimize vandalism. A chain link security
fence with locking gates surrounds the buildings, aircraft and associated airport property. Airport property is accessible through an nnmanned security gate with an automated security
system. The tenants occupying the facilities with oil and chemical storage have adequate lighting to detect a spill, ifone occurred. Tenants shall maintain adequate security systems
around their UST systems, chemical storage areas, and hangars. Addison Municipal Airport Spill Response Plan 8-1 
FIGURES Figure 1-Airport Layout Plan Figure 2 -Site Drainage Figure 3 • Site Map Dlustrating 􀁄􀁾􀁡􀁧􀁥in Fuel Farm Area 
OR BUILDING LEGEND £_--Rorenmctd from Bomord Dunkelberg I: Compc Tulsa, Oklahoma ADDISON AIRPORT-"'"' AIRPORT lAYOUT PlAN EA ENGINEERING. SCIIitNCE. ANt)TECHNOLOGY 
BUILDING LEGEND Rerof'Ol'lCOd from Barnard 􀁄􀁵􀁮􀁬􀀼􀁥􀀺􀁬􀁾􀀠&: Tulsa. Oklahoma ADDISON AIRPORT-"'" BUILDING LEGEND EtA ENGINEE;RINQ. SClENCe:. ANO T£CHNOLOav' 
BUILDING LEGEND:HMENT A fOR ... ADDISON AIRPORT-SITE DRAINAGE 􀁾􀀠ENQINEe:RINQ:. SCIENCe:, ANO TECHNOt.OG"r" 
I BRICK WMl. o <l: o 0:: o 100' I I APPROX. SCALE LEGEND EA ENGINEERING. SCIENCE. AND TECHNOL.OGY -I!I' l.AH 􀁉􀀭􀀫􀀭􀀺􀁾􀁾􀀠r----j\. 15 􀁾􀁉􀀠􀀱􀁊􀁉􀀺􀀺􀀺􀀺􀁾􀀢􀀢􀀧􀀡􀁬􀁦􀁩􀁃􀁉􀁉􀁋􀁡􀁉􀀠IMEI.S
,6 􀀮􀀬􀀮􀁊􀀭􀀯􀀷􀀭􀁾􀀮􀀡􀁊􀀭􀁊􀀭􀁓􀁉􀀧􀁉􀀮􀁉􀀮􀀠_ I/A1mIILS ADDISON AIRPORT FUR FARM_1EX.IS SITE MAP SHOWING DRAINAGE SCN.l: !WE mw:r I«l 1· = 100' 06-02-98 13457.01 3 
APPENDIX A SPTI..L PREVENTION CONTROL AND COUNTERMEASURES (SPCC) PLAN 
APPENDIXB SPILL PREVENTION INSPECTION CHECKLIST 
SPILL PREVENTION CHECKLIST The following should be inspected on a monthly basis: Containment Equipment Date of Inspection Initials ofInspecror Action Needed Action Taken Pumps Valves
Piping Absorbent Materials FaciWy Drajnage Access Evidence of SpillslLeaks " T,nl-..􀁾􀀬􀀮􀀠Hoses . Signs CapsNems Dispensers Pad Areas Tanks Piping Valves Fittings Pumps ! ! I 
APPENDIXC SPILL INCIDENT REPoRT -.-. 
SPILL INCIDENT REPORT JJESCRIBE INCIDENT: (Include all facts relating to the cause ofthe incident; stopping, containing and clean-up of spill, and contacts/conversations with outside
agencies.) INCIDENTDATB:__________ TIME:'---------------TIME:,__________________REPORTDATB:________􀁾􀁟􀀠 FACKnYNAME:____________ DISTRICT:__________ ADDRESS; (street, county, state)'--______________
________ PERSONREPORTlNG:,_______...,-__ PHONE:,_____________ MGR.IN CHARGE AT SCENE:,_______ PHONE:_______________ STORAGE CAPACITY (IN GAJU)NS) Gasoline,______AvGas,_________ Jet A,_____Other,_____
_ 􀁾􀀧􀁏􀁄􀁕􀁃􀁔SPlIJ ,ED:,________APPROX. GAJU)NS:,______ TOPPEDDATB:.________________ TIME:,___________ 􀁈􀁯􀁷􀁾􀁳􀁣􀁯􀁶􀁥􀁲􀁥􀁤􀀺􀀻____________________________________ Extent ofactual
or potential water pollution:'______________________________ Nearest body of water or tributaxy: Distance:,_____________ Any part of spill enter drainage or sanitary sewers, pipes or
ditches'l,____________________ Spill contained on premises'l_________________________________ Spill contained on an asphalt or concrete pavement area'l'_________________________ .. ..